Wireless Video Door Phone 2.4g High-definition

Features
(1) Up to 300m, 2.4GHz hopping and encryption( no obstacle transmission distance);
(2) Working in low-illumination environment for infrared light ;
(3) Multi-function: Monitor, Unlock, Talk, 16 pieces of chord ring, adjust volume;
(4) HD(Hi-definition) display, 3.5" TFT LCD screen;
(5) Time stamp with photo viewed, stored or view;
(6) Using Lithium batteries, peephole and indoor monitor are charged with USB connector, both BL- 5J rechargeable Lithium batteries.
(7) Long standby time of Peephole : 1) ON 1, it save power, works for about one year. 2) ON 2, it costs more power, works for at most 5 days.
(8) Flexible application: One peephole support 1- 4 indoor monitors simultaneously and vice versa.
(9) Wireless unlock control supports unlock with power on and power off mode.