Specification: Item Type: AV Extender_x000D_Condition: 100% brand new_x000D_Color: Black_x000D_Material: Metal_x000D_Rf Frequency Range: 49.75Mhz-863.25MHz_x000D_Remote Control Distance: 7m/23ft_x000D_Launch Distance: 20cm/7.9in_x000D_Remote Control Frequency: 38/56khz_x000D_Power Supply: USB 5V_x000D_Power: 500mW Features: 1Stable performance, plug and play, easily achieving screen remote sharing with the product. 2More stable internal chip, solving the problems of delay and lag, better using experience. 3Wide bandwidth coverage of 49.75MHz-863.25MHz, supporting for both VHF and UF. 4Support transmission frequency selection, corresponding frequency display and memory function, intelligently avoiding interference sources. 5Adopt high quality material, sturdy and durable, and you can use for a long time. PackageList: 1 x RF Transmitter1 x RF Receiver1 x Transmitter1 x Receiver1 x Plug1 x English User Manual