Top 10 Best Wireless Doorbell Button

WIRELESS DOORBELL KIT Includes everything you need for DIY installation 1 outdoor remote doorbell transmitters and 1 plug-in smart doorbell receiver, double sided tape, anchors, screws. An A23 battery is included and will last for up to 3 years.. EASY TO SETUP Our portable doorbell easily pairs and connects so you can make your wireless doorbell battery powered. Customize it by simply selecting frommore than 50 doorbell chime sounds. Has 4 volume settings, perfect for naptime or parties.. LONG RANGE Our patented technology uses the highest quality microchips and does not need wifi or bluetooth. The signal from the wireless bell ranges up to 1000 feet. Great for large homes, apartments, offices, and warehouses. U.S. Pat. No. D800005. SMART TECH Not only have we made the traditional door bell ringer wireless, but we made it smart too. It will remember your customized settings and has sleek, modern LED lights that illuminate and blink for guests to easily spot at night. Truly reliable and weather proof, will operate between temperatures of -4F to 140F.. VERSATILITY Our wireless doorbells work great for any occasion - apartment homes, townhomes, small businesses, warehouses, offices and condo properties can benefit. Whether you're using it outdoors for your front gates, back fences, or mailboxes or indoors for teachers seeking helpful classroom organization and management, there is always a good use for SadoTech.

Quick And Simple The installation requires no tools or electrical expertise The setup for this battery operated door bell is easy and convenient while contributing a stylish accent to the face of any home. Sound Library Do not commit to one single sound every time the door rings This wireless doorbell chime is not bound to any one sound Containing a library of 17 music tones and 35 chimes You have the choice to pick one you like or change it any time you wish. Not Only Doorbell The chime has a strong and unique sound An ideal instrument to be used by the hearing impaired It can be utilized as a classroom doorbell for teachers or as a call button to communicate throughout the house. A New Age For Doorbells Looking for a security system Maybe some motion detectors or a window alarm Know that the set can be customized with add ons such as pet doorbells and additional receivers. Housewarming Gift For Home Did a friend just rent a new apartment or is a coworker buying a house These wireless doorbells for home would make a terrific addition to their.

WIRELESS DOORBELL KIT Includes everything you need for DIY installation 1 outdoor remote doorbell transmitters and 1 plug-in smart doorbell receiver, double sided tape, anchors, screws. An A23 battery is included and will last for up to 3 years.. EASY TO SETUP Our portable doorbell easily pairs and connects so you can make your wireless doorbell battery powered. Customize it by simply selecting frommore than 50 doorbell chime sounds. Has 4 volume settings, perfect for naptime or parties.. LONG RANGE Our patented technology uses the highest quality microchips and does not need wifi or bluetooth. The signal from the wireless bell ranges up to 1000 feet. Great for large homes, apartments, offices, and warehouses. U.S. Pat. No. D800005. SMART TECH Not only have we made the traditional door bell ringer wireless, but we made it smart too. It will remember your customized settings and has sleek, modern LED lights that illuminate and blink for guests to easily spot at night. Truly reliable and weather proof, will operate between temperatures of -4F to 140F.. VERSATILITY Our wireless doorbells work great for any occasion - apartment homes, townhomes, small businesses, warehouses, offices and condo properties can benefit. Whether you're using it outdoors for your front gates, back fences, or mailboxes or indoors for teachers seeking helpful classroom organization and management, there is always a good use for SadoTech.

WIRELESS DOORBELL KIT Includes everything you need for DIY installation 2 outdoor remote doorbell transmitters and 1 plug-in smart doorbell receiver, double sided tape, anchors, screws. An A23 battery is included and will last for up to 3 years.. EASY TO SETUP Our portable doorbell easily pairs and connects so you can make your wireless doorbell battery powered. Customize it by simply selecting frommore than 50 doorbell chime sounds. Has 4 volume settings, perfect for naptime or parties.. LONG RANGE Our patented technology uses the highest quality microchips and does not need wifi or bluetooth. The signal from the wireless bell ranges up to 1000 feet. Great for large homes, apartments, offices, and warehouses. U.S. Pat. No. D800005. SMART TECH Not only have we made the traditional door bell ringer wireless, but we made it smart too. It will remember your customized settings and has sleek, modern LED lights that illuminate and blink for guests to easily spot at night. Truly reliable and weather proof, will operate between temperatures of -4F to 140F.. VERSATILITY Our wireless doorbells work great for any occasion - apartment homes, townhomes, small businesses, warehouses, offices and condo properties can benefit. Whether you're using it outdoors for your front gates, back fences, or mailboxes or indoors for teachers seeking helpful classroom organization and management, there is always a good use for SadoTech.

WIRELESS DOORBELL KIT Includes everything you need for DIY installation 1 outdoor remote doorbell transmitters and 1 plug-in smart doorbell receiver, double sided tape, anchors, screws. An A23 battery is included and will last for up to 3 years.. EASY TO SETUP Our portable doorbell easily pairs and connects so you can make your wireless doorbell battery powered. Customize it by simply selecting frommore than 50 doorbell chime sounds. Has 4 volume settings, perfect for naptime or parties.. LONG RANGE Our patented technology uses the highest quality microchips and does not need wifi or bluetooth. The signal from the wireless bell ranges up to 1000 feet. Great for large homes, apartments, offices, and warehouses. U.S. Pat. No. D800005. SMART TECH Not only have we made the traditional door bell ringer wireless, but we made it smart too. It will remember your customized settings and has sleek, modern LED lights that illuminate and blink for guests to easily spot at night. Truly reliable and weather proof, will operate between temperatures of -4F to 140F.. VERSATILITY Our wireless doorbells work great for any occasion - apartment homes, townhomes, small businesses, warehouses, offices and condo properties can benefit. Whether you're using it outdoors for your front gates, back fences, or mailboxes or indoors for teachers seeking helpful classroom organization and management, there is always a good use for SadoTech.

WIRELESS DOORBELL KIT Includes everything you need for DIY installation 1 outdoor remote doorbell transmitters and 1 plug-in smart doorbell receiver, double sided tape, anchors, screws. An A23 battery is included and will last for up to 3 years. EASY TO INSTALL SETUP Our portable doorbell easily pairs and connects so you can make your wireless doorbell battery powered. Customize it by simply selecting from more than 50 doorbell chime sounds. Has 4 volume settings, perfect for naptime or parties.. LONG RANGE Our patented technology uses the highest quality microchips and does not need wifi or bluetooth. The signal from the wireless bell ranges up to 1000 feet. Great for large homes, apartments, offices, and warehouses.. SMART TECH Not only have we made the traditional door bell ringer wireless, but we made it smart too. It will remember your customized settings and has sleek, modern LED lights that illuminate and blink for guests to easily spot at night. Truly reliable and weather proof, will operate between temperatures of -4F to 140F.. VERSATILITY Our wireless doorbells work great for any occasion - apartment homes, townhomes, small businesses, warehouses, offices and condo properties can benefit. Whether you're using it outdoors for your front gates, back fences, or mailboxes or indoors for teachers seeking helpful classroom organization and management, there is always a good use for SadoTech.

WIRELESS DOORBELL KIT Includes everything you need for DIY installation 2 outdoor remote doorbell transmitters and 1 plug-in smart doorbell receiver, double sided tape, anchors, screws. An A23 battery is included and will last for up to 3 years.. EASY TO SETUP Our portable doorbell easily pairs and connects so you can make your wireless doorbell battery powered. Customize it by simply selecting frommore than 50 doorbell chime sounds. Has 4 volume settings, perfect for naptime or parties.. LONG RANGE Our patented technology uses the highest quality microchips and does not need wifi or bluetooth. The signal from the wireless bell ranges up to 1000 feet. Great for large homes, apartments, offices, and warehouses. U.S. Pat. No. D800005. SMART TECH Not only have we made the traditional door bell ringer wireless, but we made it smart too. It will remember your customized settings and has sleek, modern LED lights that illuminate and blink for guests to easily spot at night. Truly reliable and weather proof, will operate between temperatures of -4F to 140F.. VERSATILITY Our wireless doorbells work great for any occasion - apartment homes, townhomes, small businesses, warehouses, offices and condo properties can benefit. Whether you're using it outdoors for your front gates, back fences, or mailboxes or indoors for teachers seeking helpful classroom organization and management, there is always a good use for SadoTech.

PAIRS CONNECTS EASILY FOR quick, frustration-free installation anywhere in your home. WHILE OTHER doorbells wireless are DIFFICULT TO SET UP or DONT WORK CONSISTENTLY, door bells by SadoTech extend OVER 1000FT of RANGE in open areas are PROVEN TO WORK THROUGH DOORS WALLS. Great for large homes, apartments, offices warehouses. And with BATTERY LIFE of UP TO 3 YEARS, youll never miss a chime Use as door chime for business when entering or classroom doorbell for teachers. THIS WIRELESS DOORBELL KIT IS the perfect starter for any wireless door bell user. KIT CONTAINS 1 wireless doorbell transmitters and 1 plug in smart doorbell receiver, double sided mounting tape, anchors, screws and A23 BATTERY INCLUDED. Sleek, modern LED INDICATOR lights illuminate both transmitter receiver can be set at 4 VOLUME SETTINGS, from low for naptime to high during a party. Our extensive COLOR SELECTION means youll find the right door bell push button to suit your style.. BUILD THE ULTIMATE SMART door bell system With multiple wireless door bells you can CONFIGURE each door with A DIFFERENT CHIME or ringtone. KNOW EXACTLY WHICH DOOR your visitors are calling from. For homes or offices with multiple entry points, this is CONVENIENT TIME-SAVING. Youll soon wonder how you lived without it. And UNLIKE SOME OTHER doorbell wireless, this door bell by SadoTech is truly WATERPROOF WEATHERPROOF to -4F140F for a system that lasts for years to come.. OUR PATENT-PENDING SOUND CHIP holds the LARGEST SELECTION of classy, high-quality ding-dong chimes, NO TINNY, ANNOYING ringtones. With 52 TOTAL RINGTONES at 4 VOLUME LEVELS, youll feel good knowing our ring chime MEMORY CHIP STORES your chosen doorbell chime selections even when unplugged or turned off. LISTEN FOR YOURSELF Just SCROLL DOWN to the Technical Specs section below click the Specification Sheet link to DOWNLOAD the PDF. Open the PDF and play all 52 ringtones.. AT SADOTECH, OUR GOAL IS to provide INNOVATIVE, HIGH-QUALITY PRODUCTS at a price everyone can afford. QUALITY IS KEY We love that our products bring ADDED SECURITY, CONTROL peace of mind to you, our customers. NEED SPARE BATTERIES, extra add-on buttons, receivers, sensors or a CUSTOMIZED DOORBELL button Visit our store www.amazon.comsadotech. If, for any reason, you dont love your wireless doorbells by SadoTech, reach out and WE WILL MAKE IT RIGHT..

WIRELESS DOORBELL KIT Includes everything you need for DIY installation 1 outdoor remote doorbell transmitters and 1 plug-in smart doorbell receiver, double sided tape, anchors, screws. An A23 battery is included and will last for up to 3 years.. EASY TO SETUP Our portable doorbell easily pairs and connects so you can make your wireless doorbell battery powered. Customize it by simply selecting frommore than 50 doorbell chime sounds. Has 4 volume settings, perfect for naptime or parties.. LONG RANGE Our patented technology uses the highest quality microchips and does not need wifi or bluetooth. The signal from the wireless bell ranges up to 1000 feet. Great for large homes, apartments, offices, and warehouses. U.S. Pat. No. D800005. SMART TECH Not only have we made the traditional door bell ringer wireless, but we made it smart too. It will remember your customized settings and has sleek, modern LED lights that illuminate and blink for guests to easily spot at night. Truly reliable and weather proof, will operate between temperatures of -4F to 140F.. VERSATILITY Our wireless doorbells work great for any occasion - apartment homes, townhomes, small businesses, warehouses, offices and condo properties can benefit. Whether you're using it outdoors for your front gates, back fences, or mailboxes or indoors for teachers seeking helpful classroom organization and management, there is always a good use for SadoTech.

PAIRS CONNECTS EASILY FOR quick, frustration-free installation anywhere in your home. WHILE OTHER doorbells wireless are DIFFICULT TO SET UP or DONT WORK CONSISTENTLY, door bells by SadoTech extend OVER 1000FT of RANGE in open areas are PROVEN TO WORK THROUGH DOORS WALLS. Great for large homes, apartments, offices warehouses. And with BATTERY LIFE of UP TO 3 YEARS, youll never miss a chime Use as door chime for business when entering or classroom doorbell for teachers. THIS WIRELESS DOORBELL KIT IS the perfect starter for any wireless door bell user. KIT CONTAINS 2 wireless doorbell transmitters and 2 plug in smart doorbell receiver, double sided mounting tape, anchors, screws and A23 BATTERY INCLUDED. Sleek, modern LED INDICATOR lights illuminate both transmitter receiver can be set at 4 VOLUME SETTINGS, from low for naptime to high during a party. Our extensive COLOR SELECTION means youll find the right door bell push button to suit your style.. BUILD THE ULTIMATE SMART door bell system With multiple wireless door bells you can CONFIGURE each door with A DIFFERENT CHIME or ringtone. KNOW EXACTLY WHICH DOOR your visitors are calling from. For homes or offices with multiple entry points, this is CONVENIENT TIME-SAVING. Youll soon wonder how you lived without it. And UNLIKE SOME OTHER doorbell wireless, this door bell by SadoTech is truly WATERPROOF WEATHERPROOF to -4F140F for a system that lasts for years to come.. OUR PATENT-PENDING SOUND CHIP holds the LARGEST SELECTION of classy, high-quality ding-dong chimes, NO TINNY, ANNOYING ringtones. With 52 TOTAL RINGTONES at 4 VOLUME LEVELS, youll feel good knowing our ring chime MEMORY CHIP STORES your chosen doorbell chime selections even when unplugged or turned off. LISTEN FOR YOURSELF Just SCROLL DOWN to the Technical Specs section below click the Specification Sheet link to DOWNLOAD the PDF. Open the PDF and play all 52 ringtones.. THE SADOTECH WIRELESS DOORBELL is not only functional but also ADA compliant, making it an excellent choice for the hearing impaired. It's also perfect for classroom use, as a business door buzzer, or for home use. With its long range, waterproof design, and easy installation, it's the ideal solution for all your doorbell needs. Plus, with its sleek, modern design and extensive color selection, it's sure to complement any decor..

PAIRS CONNECTS EASILY FOR quick, frustration-free installation anywhere in your home. WHILE OTHER doorbells wireless are DIFFICULT TO SET UP or DONT WORK CONSISTENTLY, door bells by SadoTech extend OVER 1000FT of RANGE in open areas are PROVEN TO WORK THROUGH DOORS WALLS. Great for large homes, apartments, offices warehouses. And with BATTERY LIFE of UP TO 3 YEARS, youll never miss a chime Use as door chime for business when entering or classroom doorbell for teachers. THIS WIRELESS DOORBELL KIT IS the perfect starter for any wireless door bell user. KIT CONTAINS 1 wireless doorbell transmitters and 2 plug in smart doorbell receiver, double sided mounting tape, anchors, screws and A23 BATTERY INCLUDED. Sleek, modern LED INDICATOR lights illuminate both transmitter receiver can be set at 4 VOLUME SETTINGS, from low for naptime to high during a party. Our extensive COLOR SELECTION means youll find the right door bell push button to suit your style.. BUILD THE ULTIMATE SMART door bell system With multiple wireless door bells you can CONFIGURE each door with A DIFFERENT CHIME or ringtone. KNOW EXACTLY WHICH DOOR your visitors are calling from. For homes or offices with multiple entry points, this is CONVENIENT TIME-SAVING. Youll soon wonder how you lived without it. And UNLIKE SOME OTHER doorbell wireless, this door bell by SadoTech is truly WATERPROOF WEATHERPROOF to -4F140F for a system that lasts for years to come.. OUR PATENT-PENDING SOUND CHIP holds the LARGEST SELECTION of classy, high-quality ding-dong chimes, NO TINNY, ANNOYING ringtones. With 52 TOTAL RINGTONES at 4 VOLUME LEVELS, youll feel good knowing our ring chime MEMORY CHIP STORES your chosen doorbell chime selections even when unplugged or turned off. LISTEN FOR YOURSELF Just SCROLL DOWN to the Technical Specs section below click the Specification Sheet link to DOWNLOAD the PDF. Open the PDF and play all 52 ringtones.. AT SADOTECH, OUR GOAL IS to provide INNOVATIVE, HIGH-QUALITY PRODUCTS at a price everyone can afford. QUALITY IS KEY We love that our products bring ADDED SECURITY, CONTROL peace of mind to you, our customers. NEED SPARE BATTERIES, extra add-on buttons, receivers, sensors or a CUSTOMIZED DOORBELL button Visit our store www.amazon.comsadotech. If, for any reason, you dont love your wireless doorbells by SadoTech, reach out and WE WILL MAKE IT RIGHT..

WIRELESS DOORBELL KIT Includes everything you need for DIY installation 1 outdoor remote doorbell transmitters and 1 plug-in smart doorbell receiver, double sided tape, anchors, screws. An A23 battery is included and will last for up to 3 years.. EASY TO SETUP Our portable doorbell easily pairs and connects so you can make your wireless doorbell battery powered. Customize it by simply selecting frommore than 50 doorbell chime sounds. Has 4 volume settings, perfect for naptime or parties.. LONG RANGE Our patented technology uses the highest quality microchips and does not need wifi or bluetooth. The signal from the wireless bell ranges up to 1000 feet. Great for large homes, apartments, offices, and warehouses. U.S. Pat. No. D800005. SMART TECH Not only have we made the traditional door bell ringer wireless, but we made it smart too. It will remember your customized settings and has sleek, modern LED lights that illuminate and blink for guests to easily spot at night. Truly reliable and weather proof, will operate between temperatures of -4F to 140F.. VERSATILITY Our wireless doorbells work great for any occasion - apartment homes, townhomes, small businesses, warehouses, offices and condo properties can benefit. Whether you're using it outdoors for your front gates, back fences, or mailboxes or indoors for teachers seeking helpful classroom organization and management, there is always a good use for SadoTech.

WIRELESS DOORBELL KIT Includes everything you need for DIY installation 1 outdoor remote doorbell transmitters and 1 plug-in smart doorbell receiver, double sided tape, anchors, screws. An A23 battery is included and will last for up to 3 years.. EASY TO SETUP Our portable doorbell easily pairs and connects so you can make your wireless doorbell battery powered. Customize it by simply selecting frommore than 50 doorbell chime sounds. Has 4 volume settings, perfect for naptime or parties.. LONG RANGE Our patented technology uses the highest quality microchips and does not need wifi or bluetooth. The signal from the wireless bell ranges up to 1000 feet. Great for large homes, apartments, offices, and warehouses. U.S. Pat. No. D800005. SMART TECH Not only have we made the traditional door bell ringer wireless, but we made it smart too. It will remember your customized settings and has sleek, modern LED lights that illuminate and blink for guests to easily spot at night.. RELIABLE Our wireless door bell will work through snow, rain, or sunshine. The strong body of our battery doorbell is truly weather proof and will operate between temperatures of -4F to 140F while combatting the elements for years to come..

EASY TO SET UP 2 transmitters included can add more AVANTEK RB-1 receivers for increased coverage simply fix the transmitter on the wall without any wiring includes 4 screws, 4 anchors, 1 key and 2 double-sided adhesive pads. 400 M1,312 FT ULTRA LONG WIRELESS RANGE Will not interfere with other equipment in your home or those of your neighbors ensures you will never miss a visitor, even if you are a few rooms away or on another floor. TAILOR YOUR TRANSMITTER 40 mm stereo speaker delivers rich and crisp sound 52 melodies and 5 adjustable volume levels with a maximum setting of 115 dB set a different ring tone for each transmitter so that you know exactly which doorbell has been rung. HIGH PERFORMANCE The transmitter has ultra-low power consumption uses CR2032 lithium battery that boasts 3-year maximum lifespan IP55 dustproof and waterproof rating works between -4 F to 140 F withstands various harsh weather conditions. MEMORY FUNCTION Remembers your last melody and volume level after a power outage no need to reset to your previous settings convenient and easy-to-use design for an enhanced user experience.

Black and Satin Nickel Finish. Battery Operated for Simple Installation - Surface Mount. Range up to 100-Feet. Compatible with all HeathZentih Wireless Door Chimes.

300m1000ft Ultra Long Operating RangeOperating range up to 1,000ft300m in an open area when there are no obstructions. Higher penetration without worrying about signal obstruction, ensures you will never miss a visitor, even if you are a few rooms away or on another floor.. Up to 58 Ringtones ChoicePHYSEN doorbell offer 58 pop chimes and 5 level adjustable0-110 dB, different chimes set for different doors so you can know which door you have a visitor come in. LED indicator is easy for people including the hearing impaired to notice.. IP55 Waterproof DustproofDoor bell kits use excellent materials keeps itself from getting higher temperature interference. IP55 dustproof and waterproof, withstand various harsh weather conditionsWorks between -4F to 140F, suitable for any home, townhouse, apartment, office, school, hospital, hotel.. ExpandableWireless doorbell system can add more PHYSEN receivers or push buttons for increased coverage. This wireless outdoors doorbell also can be used with our door sensor, driveway alarm, etc. Welcome to visit other products in our store.. Easy to InstallJust plug the doorbell receiver into any standard outlet and tear the double- sided adhesive tape which on the back of doorbell button or screw mounted and stick them to the door is fine, please take the insulating paper away before using the doorbell..

Push button for wireless doorbell system. For adding another door to a Heath Zenith wireless system SL-6190 and SL-6290 series. Weatherproof for durability. Off-white.

EASY TO SET UP 2 transmitters included can add more AVANTEK Mini receivers for increased coverage simply fix the transmitter on the wall without any wiring includes 4 screws, 4 anchors, 1 key and 2 double-sided adhesive pads. 300 M1,000 FT ULTRA LONG WIRELESS RANGE Will not interfere with other equipment in your home or those of your neighbors ensures you will never miss a visitor, even if you are a few rooms away or on another floor. TAILOR YOUR TRANSMITTER 1.1 in 29 mm stereo speaker delivers rich and crisp sound 52 melodies and 5 adjustable volume levels with a maximum setting of 115 dB set a different ring tone for each transmitter so that you know exactly which doorbell has been rung. HIGH PERFORMANCE The transmitter has ultra-low power consumption uses a CR2032 lithium battery that boasts 3-year maximum lifespan IP55 dustproof and waterproof rating works between -4 F to 140 F withstands various harsh weather conditions. HIGH PERFORMANCE The transmitter has ultra-low power consumption uses a CR2032 lithium battery that boasts 3-year maximum lifespan IP55 dustproof and waterproof rating works between -4 F to 140 F withstands various harsh weather conditions.

Wireless E compatibility. Feedback LED. Weather resistant. Surface mount. Honeywell Home ActivLInk.

SIMPLE SET UP Just plug the mini receiver into a socket and fix the transmitter on a wall with the accessories provided includes 2 screws, 2 anchors, a key and a piece of double-sided bonding tape. 300 M1000 FT ULTRA LONG WIRELESS RANGE 1 plug-in receiver included will not interfere with other equipment in your home or those of your neighbors ensures you will never miss a visitor, even if you are a few rooms away or on another floor. 52 CHIMES TO CHOOSE FROM 1.1 in 29 mm stereo speaker delivers rich and crisp sound 5 adjustable volume levels with a maximum setting of 115 dB press Next or Previous button to easily choose from 52 melodies. HIGH PERFORMANCE TRANSMITTER Ultra-low power consumption uses a CR2032 lithium battery that boasts 3-year maximum lifespan IP55 dustproof and waterproof rating works between -4 F to 140 F withstands various harsh weather conditions. MEMORY FUNCTION Remembers your last melody and volume level after a power outage no need to reset to your previous settings convenient and easy-to-use design for an enhanced user experience.

HIGH PERFORMANCE TRANSMITTER Ultra-low power consumption uses a CR2032 lithium battery that boasts 3 year maximum lifespan IP55 dustproof and waterproof working temperature ranges from -4 F-140 F withstands various harsh weather conditions. 1000 FT ULTRA LONG WIRELESS RANGE 2 plug-in receivers included will not interfere with other equipment in your home or those of your neighbors ensures you will never miss a visitor, even if you are a few rooms away or on another floor. 52 CHIMES TO CHOOSE FROM 1.1 in 29 mm stereo speaker delivers rich and crisp sound 5 adjustable volume levels with a maximum setting of 115 dB press Next or Previous button to easily choose from 52 melodies. MEMORY FUNCTION Remembers your last melody and volume level after a power outage no need to reset to your previous settings convenient and easy-to-use design for an enhanced user experience. EASY TO SET UP Can add more AVANTEK mini receivers for increased coverage includes 2 screws, 2 anchors, 1 key and 1 adhesive patch for easy installation of transmitter.

HIGH PERFORMANCE TRANSMITTER Ultra-low power consumption uses a CR2032 lithium battery that boasts 3 year maximum lifespan IP55 dustproof and waterproof working temperature ranges from -4 F-140 F withstands various harsh weather conditions. 400 M 1312 FT WIRELESS RANGE 2 plug-in receivers included will not interfere with other equipment in your home or those of your neighbors ensures that you will never miss any visitors, even if you are several rooms away. 52 BEAUTIFUL CHIMES 40 mm stereo speaker delivers rich and crisp sound press the Next or Previous button to easily choose from 52 melodies 5 adjustable volume levels, with a maximum volume of 115 dB enjoy pleasant melodies whenever someone rings at your door. MEMORY FUNCTION Preserves your last set melody and volume level after a power outage no need to reset to your previous settings convenient and easy to use design for a better user experience. EASY TO SET UP Can add more AVANTEK RB-1 receivers for increased coverage includes 2 screws, 2 anchors, 1 key and 1 adhesive patch for easy installation of transmitter.