Features:
- Power Source: AC
- Power Source: Battery
- Doorbell Type: Wireless
- Type: Doorbells
- Power supply: 110V-220V-240V
- working frequency: 433MHZ
- Ring Tone: 60 Different ring tones
- Waterproof: IP44
- Power Source: Plug EU US UK AU
- Battery mode: 12v 23A battery (not include battery)
- Receiving distance: 300M Remote (in open area)
- Detail: 1 or 2 Outdoor Transmitter 1 or 2 3 Indoor Receiver
- Use of premises: Home office villa hospital school factory
- Features 1: Distinguish front and rear doors