Enhance Security and Convenience with CallTou Wireless Door Chime Kit - 1000ft Range, 55 Ringtones, 5 Volume Levels, 7-Color Flash - Ideal for Home, Office, and Business call button What type of lithium-ion battery

What type of lithium-ion battery is used on the side of the transmitter sensor

Monitor Function

Our advanced technology and chips ensure that our hearing aids effectively amplify speech while minimizing background noise

the call button and paging system don't need to be paired

Long Range & Expandable The door chime sensor has 1000ft far enough to cover every door in your house or store

Enhance Security and Convenience with CallTou Wireless Door Chime Kit - 1000ft Range, 55 Ringtones, 5 Volume Levels, 7-Color Flash - Ideal for Home, Office, and Business call button What type of lithium-ion batteryProduct Description [ Wireless & Effortless Installation ] Bid farewell to the hassles of wired installations! Setting up our wireless door sensor is as easy as 1 2 3. Simply plug in the Receiver and attach the wireless door sensor to your door or window it's that simple! Once paired, whenever your door or window opens, the receiver will instantly chime, providing you with peace of mind. [ Protect Your Loved Ones ] Safety always comes first. Our door