Feature: Wireless Intercom System: Door Phone
Intercom System, no telephone wires needed, built-in rechargeable
battery, works with or without electricity power, standby time 30 days.
Save your phone bills.
Wireless Intercom System: Door Phone Intercom System, no telephone wires
needed, ..
Features :1. Automatic/manual start, stop and clear2.
UV (ultraviolet) detection: can detect banknotes with suspected UV
properties, because fake notes often use white or bleached paper which
will reflect UV light and make the surface of note very bright. Real
banknotes can absorb UV light.3..