... unlocking,handsfree.night vision 2.support 4CH video in, 1CH video out 3.high resolution and ... model, video recording available.11. Support 4CH video in, 1CH video out.12. 4CH can switch by ... TradeManager, most emails are responded with in 24 business hours. 7" TFT-LCD touch key wired video door phone ... ,supporting 4CH video in,1CH video out.night ...