Wireless Doorbell with EU Plug – 300M Remote Control, Waterproof, 433 Frequency Signal Alarm

Feature：
Ringtones available and 3-step volume control （0 ~85dB）, When someone presses the doorbell, the eye-catching backlight flashes. Especially suitable for the elderly, deaf and pregnant women, use machine learning to prevent. interference from other wireless transmitte,Design service life up to 25 years.
Specification：
① Operating frequency: 433MHz
② Receiving distance: 300m (in open area)
③ Size: 75x51x20mm receiver size: 95x65x24mm
④ Voltage: AC110V-220V-240V
⑤ Transmitter 12v23a battery factory pre-installed
Package included：
1× Plug-in receiver
1 × Battery Transmitter
1 × EU Plug