1. UHF modulator, PAL/NTSC, cost-effective for your own local CATV system.2. Compatible with set-top box and other A/V sources, more reliable to use.3. Designed with adjustable audio/video output level4. Simple appearance design, exquisite workmanship, making you fondle admiringly.5. Adopt high quality material, sturdy and durable, and you can use for a long time.Model Number:TV LINK ModulatorItem Type: ModulatorCondition: 100% brand newRated Voltage: USB5VRated Power: 1WRated Frequency: 50HzRemote Frequency: 38KHz/56KHzRemote Distance: greater than equal 8mDefault Factory Settings: Channel 21 (471.25mhz), PAL/I/38KHzPower Consumption: USB5V 400mAOperating Temperature: 0 - + 40color:BlackMaterial:plasticPackage Contents:1 x Modulator1 x USB Cable1 x Signal Receiving CableOnly the above package content, other products are not included.Note: Light 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.