... p, impedance: 75Ω,Audio CompressionG.726, G711, ADPCMAudio Input1/2/4 channel, RCA port, liner input, Impedance:1KOhmsAudio Output1channel, ... CDMA, GPRS mobile network. supports 802.11b/g protocol, 2.4GHz, maximum wireless distance can be 100 meters, Supports WEP,WPA ... SD card), Support FTP server.Supports smart mobile monitor that is based on Windows Mobile, Symbian , Android and iPhone platformsAlarm ...