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 material, sturdy and , and you can use for a long time. Item Type: Modulator Rated Voltage: USB5V Rated Power: 1W Rated Frequency: 50Hz Remote Frequency: 38KHz/56KHz Remote Distance: 10m Default Factory Settings: Channel 21 (471.25mhz), PAL/I/38KHz Power Consumption: USB5V 400mA Operating Temperature: 0 - and 40 Colour:As Shown Material:plastic Package Contents: 1 x Modulator 1 x USB Cable 1 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. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.