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：

② Receiving distance:  300m (in open area)

③ Size: 75x51x20mmReceiver size: 95x65x24mm

④ Voltage:  AC110V-220V-240V

⑤ Transmitter 12v23a battery factory pre-installed (battery not included)

Package included：

1× Plug-in receiver

1× Battery Transmitter

1× EU Plug

Notice:

① Standaard Eu-stekker verzenden

② Can be splash-proof, please do not soak in the water