Features:
Long range up to 300 meters in open areas
This wireless doorbell is equipped with 1 receiver, you can use the doorbell at home, in the classroom, hospital, office, hotel, motel, restaurant, etc.
45 melodies and tunes to choose from, silent mode included
Many melodies and chimes for you to choose the one you like the most. Silent mode available for children's rooms or when you are sleeping or need to rest.
4 volume levels
The bell's sound is loud enough for you to hear when someone visits you. Very easy to hear for elderly people. Loud enough to catch the attention of students in a classroom or school if you are a teacher.
Waterproof IP44
You can install the wireless doorbell transmitter outdoors. Easy installation and use. You don't need to drill into the wall, there is double-sided tape to attach the transmitter to the wall or door. Two screws are also included if you want to drill.
Doorbell power source: 23A 12V battery (gift)
Power source: 85V-260V
Ambient temperature: -10C-+45C
Transmission distance: 250-300 meters in open space
RF frequency: 433 MHz 0.5 MHz
Output power: 0.25W
Ringtones: 45 polyphonic songs
Volume: 0-110dB
Light color: blue