Specifications: Power In: 12V DC. Power Out: 12 V DC, Max Current 1A. Video Input: 4channels/ 2channels/ 1channel, 1.0Vp-p, 75© , BNC. Video Out: 1 channel, 1.0Vp-p, 75© , CVBS or LCD. Video Standard: PAL/ NTSC. Audio Input: 2 channels( Stereo) , Line In, 50~ 400mv, 50Hz~ 3500Hz. Audio Out: 1 channel. Compression: Advanced H.264( High/ main/ baseline profile) . Quality: Full D1/ CIF. Max Resolution: PAL720× 576/ NTSC 720× 480. Frame Rate: PAL: 25/ 12/ 8/ 6/ 5/ 4/ 3/ 2/ 1 fps, NTSC: 30/ 15/ 10/ 7/ 6/ 5/ 4/ 2/ 1 fps. Bitrate: 1.0/ 1.5/ 2.0 MBps. Storage: SD Card. Alarm Input: 4 Alarm Input. Alarm Output: 2 Alarm Output. Ethernet: 10/ 100M Base-T, RJ45. GPS: NMEA 183( optional) . PTZ: RS485. Language: English / Chinese. Supported Band: Quad band, 850/ 900/ 1800/ 1900 MHz ( applicable for models that support GPRS only) Product Size: 90mm* 80mm* 20 mm. Weight: 1.2Kg. Power Consumption: 10W. Working Condition: Temperature: 0~ + 50, Humidity: