Product description
6-15 meters long distance indoor transmission
Four levels of volume adjustment, 62 ringtones, for different needs
Flame retardant and waterproof material
Automatic standby, energy saving, long battery life
Size: External unit 18*45*72mm, internal unit 28*59*93mm
Material: ABS flame retardant and waterproof material
External unit 12V23A battery*1 (last half a year to one year)
Internal machine national standard two-pin 220V (3-5 kWh per year)
Transmission distance: about 6 meters through iron gates, 6-15 meters through partition walls, and 150 meters in open space
Volume: four levels of adjustment, 62 different ringtones
Installation method: double-sided sticker fixation