One to Two Wireless Doorbells Home Music Digital Doorbell Long Distance Doorbell Black and White Smart Sensor-BLACK

1. AC doorbell: The receiver (indoor unit) uses the household power supply and can be plugged directly into the outlet. It is environmentally friendly! The transmitter (outdoor unit) uses a battery for about a year.
2. Long-distance wireless signal super-receiving: suitable for home, office, hotel, building, dormitory, factory, construction site, etc.
3. Wireless high-frequency transmission technology: Adopt wireless high-frequency transmission technology and same-frequency different code, effectively avoiding the troubles caused by mutual interference and false alarms between neighbors.
4. Receiver Smart Flash: more convenient to use.
5. Easy to install: Plug and play, it is more convenient to use.

Specifications:
Brand: CACAZI
Model: A10
Scope of work: 300M
Music Choice: 36 Music (Default Ding Ding Ding Ding)
Volume Selection: 4 Classes Volume
Power Voltage: Receiver Supports AC100-240V Voltage
AC doorbell: The transmitter is directly plugged in with a 12V23A battery receiver
Size : Launcher: 75*51*20mm
Receiver: 95*65*24mm