1、HD video and audio signals are transmitted via built-in wireless WIFI. 2、In the open environment, the farthest transmission is 50 meters. If there is a partition wall, the maximum transmission is 25 meters. 3、High definition video signal resolution up to 1920 x 1080P@60Hz. 4、Compatible with HD 3, support WIFI automatic connection. 5、Adopts international standard H.264 format for compression and decompression of video, effectively improve the transmission efficiency, to ensure the smooth play. 6、Built-in automatic equalization system, the picture is smooth, clear and stable. 7、The built-in ESD electrostatic protection circuit protects the system from all aspects. 8、Simple and convenient to install, plug and play, no need to set up. 1 x Transmitting End1 x Receiving End2 x Power Supply1 x Instruction Manual  2 x Antenna Condition: 100% Brand NewItem Type: Wireless TransmitterMaterial: Plastic Color: As Pictures ShownVoltage: 100-240VOptional Plug: EU Plug, US Plug, UK PlugVideo: Support Agreement: HD 1.3; HDCP 1.2Compressed Format: H.264Pixel Bandwidth: 165MHz, All DigitalInterface Bandwidth: Total Bandwidth 6.75GbpsMaximum Support Resolution: 1920 x 1080P@60HzInterface: HD-A InterfaceImpedance: 100ΩWIFI：RF Power: 13dbmWireless Standard: 802.11acSignal Direction: One DirectionWireless Frequency: 2.4GHz/5GHz