3.5'' wireless video door phone, wireless intercom, door phone system

Wireless control to open the lock, hands-free call, talk function

Clear and stable image, crisp sound

2.4GHz digital wireless video intercom. Frequency - Hopping spread spectrum techonolgy

Image momory: 160pcs, can be expanded to 1,000pcs

Battery indicator and signal display

Auto-sleep mode support

Distance: 250m (free lane), 50m indoors

One outdoor camera can support up to 4 indoor monitors, one indoor monitor can support up to 4 outdoor cameras

Indoor monitor can wall-mounted or desktop, and can be moved at any time, so you can know or see your guests at any time and location