1. HDMI video and audio transmission via built-in wireless transmission protocol,no need WiFi or internet 2. HDMI 1.3 ,HDCP1.2 compatible; 3. Support regular HD video resolution up to 1920x1080@60Hz ; 4. The transfer is efficiency to ensure that the playback fluency; 5. Built-in automatic balance system, the picture is fluent, clear and stable; 6. The built-in ESD electrostatic protection circuit, comprehensive security protection system; 7. Simple and convenient installation, plug and play, do not need to set up. 8. Support up to 50m long distance in one transmitter to one receiver mode. 9.Mini portable,easy to carry,can carry with you and use it at any time,very convenient.