1. Compatible with set-top box and other A/V sources, more reliable to use.2. Designed with adjustable audio/video output level, and optional output channel.3. Simple appearance design, exquisite workmanship, making you fondle admiringly.4. Adopt high quality material, sturdy and , and you can use for a long time.Item Type: ModulatorRated Voltage: USB5VRated Power: 1WRated Frequency: 50HzRemote Frequency: 38KHz/56KHzRemote Distance: 10mDefault Factory Settings: Channel 21 (471.25mhz), PAL/I/38KHzPower Consumption: USB5V 400mAOperating Temperature: 0 - + 40Colour:As ShownMaterial:plasticPackage Contents:1 x Modulator1 x USB Cable1 x Signal Receiving Cable(Due to different product batches, the appearance , which does not affect the use)Only the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.