Kestrel 4 Channel 1080N Lite Hybrid Recorder with 2TB HDD2MP Quality Recording4 Channel PlaybackDC12V, 2A Power SupplySupports AHD/TVI/CVI/CVBS/IP CamerasSupports Smartphone Apps1 SATA Interface, Up to 8TB Capacity for each HDDBackup available via USBTechnical Specification:Channels: 4HDD Size: 2TBColour: BlackRecord Mode: Manual, Schedule, AlarmUSB: USB x 2TVI,CVI,AHD: 1080P, 720PAudio Input: 1-ch, RCA (2.0 Vp-p, 1kΩ)Two Way Talk: 1-ch, multiplex with Audio Input (RCA)HDMI: 1 ch, resolution: 1920 x 1080/60Hz, 1280 x 1024/60Hz, 1280 x 720/60Hz, 1024 x 768/60HzVGA: 1 ch, resolution: 1920 x 1080/60Hz, 1280 x 1024/60Hz, 1280 x 720/60Hz, 1024 x 768/60HzAudio Output: 1-ch, RCA (Linear, 1kΩ)Compression: H.264/H.264+Video Bit Rate: 11Kbps-2707KbpsAudio Compression: G.711aAudio Bit Rate: 64KbpsPlayback Mode: Smart Playback / Normal / Time Division / Label / Event / Picture PlaybackBackup Mode: USB Device / NetworkSmartphone: iOS, AndroidPower Supply: DC12V, 2AWorking Environment: -10°C ~ +55°C