Model: PAT-640 - 5.8GHz ISM frequency band - Support 8 groups of channels. You can select these channels to avoid interference from signals of a wireless router etc. - Wireless transmission is suitable for one-floor - The transmitter and the receiver are used in the same channel in a pair and can be used in the modes of point-to-multipoint or multipoint-to-multipoint - Compatible with DVD DVR CCD camera IPTV satellite set-top box digital TV set-top box and other AV output devices - Images received by means of radio are vivid and stable the color is flamboyant and the sound is clear - Supports video transmission of PAL/NTSC system and stereo audio transmission - Fully hardware-designed. There is no need to install software. Plug and play. Simple and convenient - Transmitter: - A/V Input Port: RCA - Video Input Level: 1Vp-p (PAL/NTSC) - Audio Input Level: 1Vp-p (Stereo) - Receiver: - Sensitivity: -90dBm - A/V Output Ports: RCA - Video Output Level: 1Vp-p (PAL/NTSC) - Audio Output Level: 1Vp-p (Stereo) - Package included: - 1 * Transmitter - 1 * Receiver - 2 * AC 100~240V Power Adapter (US plug) - 2 * RCA Cable - 1 * English user manual