- Support intercommunication of up to 999 intercom phones.
- Working frequency: 410MHz-460MHz, with 20 channels.
- Working distance: up to 1km without any block.
- Call ID number display and screen flashing for missed call.
- Ring: 38 ringtones, with adjustable loudness.
- Adjustable speaking voice.
- Two working modes: a) Plug in 5V1A
b) The battery works - Battery 2000 mAh, working time-about 60 days, standby current 1mAh.
- The host has one-click automatic broadcasting function.
- External audio broadcast intercom function.
- Extension has one-click host calling function.
Product size: 160mm x 110mm x 20mm