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 Entry alert chime with memory

Entry alert chime with memory function

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

(Please use DC 5V<2A charger

If you have any questions

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 Entry alert chime with memoryProduct 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