Specifications:
The document outlines the specifications for an 8-channel H.265 Full HD Mobile DVR, specifically models CV-MR8206 and CV-MR8205. It supports up to 8 channels of 1080P video input and utilizes H.265 video compression. The device is equipped with GPS and a G-Sensor, and offers 4G and Wi-Fi functionality (model MR8206 only). Storage options include a 2.5" SSD with a maximum capacity of 2TB and SD card support for event and backup recording. The power input range is DC 8V to 36V, with power output support to cameras.

Video and Audio Input:
The DVR supports HD video input via AHD/TVI and analog video input through CVBS. It features a signal-to-noise ratio of over 40dB and audio input levels between 0.5~1.4Vp-p@20k.

System Features:
The system runs on Embedded Linux 3.0.x and includes a real-time clock with GPS time calibration and daylight saving support. It has a hardware and software watchdog for system monitoring and supports auto-reboot and automatic database recovery.

Recording and Playback:
Video compression is in H.265 format, while audio uses PCM (Alaw 8KHz). Recording quality can be set to low, normal, or high, with resolutions available in 1080P, 720P, 960H, and D1. Frame rates vary by resolution, with 1080P at 15fps and others at 30fps. The device supports various recording modes, including always and event-based, with automatic overwrite capability. Playback is available via a PC viewer program with AVI conversion support.

Connectivity and Communication:
The DVR includes RS232 communication, GPIO, and USB2.0 ports. Network protocols supported include DHCP, HTTP, TCP/IP, SMTP, RTP, and RSTP. It also supports GPS with G-Mouse type and NMEA 0183 protocol.

Environmental and Physical Specifications:
The device operates in temperatures ranging from -30 to +65℃ without an SSD. Its dimensions are 177mm (W) x 49mm (H) x 181.9mm (D).