This RF Modulator allows you to convert the AV inputs into RF output signals, and when the AV device system is turned on, it will switch to Home TV automatically. This modulator privides a clearer picture and is free from outside signal interference. It is suitable for satellite receivers, video cameras, video game consoles, CCD cameras, VCR, DVD and more. 1. Support VHF / UHF operating frequency. 2. Channel digital display. 3. Ergonomic design, easy to install, easy to operate. 4. Adjustable output level and adjustable audio/video output level. 5. Channel digital display and selectable output channel. 6. Compatible with all local CATV system. Standard: pal / NTSC Frequency Range: 47-868MHz Output Impedance: 75ohm Output Level: 80-95dBuV Input Level: 0.77Vp-p for 80%+/-10% modulation Sound System: M=4.5MHz, B/G=5.5MHz, I=6.0MHz, D/K=6.5MHz Insertion Loss: Less than 1.5dB Operating Temperature: -10 ~+60 Celsius Weight: Approx. 416g colour-Voltage: AC220V-Eu Plug AC110V-Us Plug Plug Type:US Plug,it applies to Canada, India, Japan, Mexico, Thailand, the United States, the Philippines and so on. Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. Material:Plastic size:16 * 9.5 * 5cm Package Contents: 1 * Modulator 1 * User ManualOnly the above package content, other products are not included.Note: Light shooting 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.