• Wireless voice doorbell, talk with visitor via two-way voice intercom

• Big and adjustable speaker, clear voice, can be used as mobile interphone

• Talk between receiver and push button via wireless connection up to 200m
  

• Outdoor-bell is powered by 4pcs alkaline batteries(not included), indoor-bell is powered by rechargeable Li-ion battery

• Easily installed with 3M tape on the wall

Specification:

• Outdoor-bell:

• Power supply: 4xalkaline batteries (1.5Vx4)

• Wireless distance: 200m (w/o any obstacle)

• Working time: 4 months

• Wireless frequency: 467.6375MHz

• Indoor-bell:

• Power supply: rechargeable Li-ion battery 

• Wireless distance: 5-50m (w/obstacle)

• Working time: 48 hours 

• Working temperature: -20°C ~ +55°C

• Wireless frequency: 467.6375MHz