... system 2.View video via smartphone 3.CE,FCC CCTV H.264 DIY DVR Kit with 8-channel DVR, 8 Cameras built in GSM ... function, AC power failure protection, built-in li battery, mute/sound alarm, remote operation, support 5 remote controls and 16 alarm ... group,phone number:support 16 digital at mostE×ternal siren sound≥110dB.Frequency315MHz/433MHzSituation:1. Surveillance equipment and wireless alarm system ...