LYD 4-Channel Wireless Network DVR, USB Wireless Receiver with 4 Cameras, Motion Detection and Alarms, Night Vision 2.4GHZ wireless network DVR 15m Night vision network remote Monitoring Motion detection ,alarm, schedule Camera:.2.2x2.7 3inch,6.3ounce, Receiver:8.1x4.7x1.7 inch,18.3ounce