SMATRUL Waterproof Wireless Doorbell EU Plug 300M Long Range Home Door Bell Ring Call 1 Transmitter 1 Receiver LED Light Old Man

• The tranmitter 12V23A battery factory pre-installed  , This is a standard battery, the local purchase is very cheap (NOT include battery)

• 52 ringtones(16 chord)to choose from and 4 steps volume control(25~110dB)

• Eye-catching backlight flashes when someone pushes the doorbell.

• Different quantity of push unit(transmitter) and chime unit(receiver) are free to pair together.

• If paired multiple push units in one system,the chime can be set to different for each push unit.

• Using learning code to prevent interference from other wireless transmitters

• Automatically save selected ringtone after power off.

• Remote control button longevity design, an average of 5 times a day, you can use for 25 year

• Working frequency: 433MHZ 

CACAZI Wireless DoorBell EU US A