... , two way intercom 4. e-lock unlock control 2.4GHZ wireless peephole viewer with doorbell, two way intercom, photo shooting function, e ... open the door.2.4GHZ wireless transmit, you can put indoor unit in anywhere of your home, working distance in open space at ... capture, store and view photo with time stamp;(6) Both peephole and indoor monitor are charged with USB connector, both BL- 5Jrechargeable ...