Description Usage Tips:1GOOD ADAPTABILITY: Professional RF modulator, which can effectively adapt to your local CATV system, with stable performance and better signal. 2INPUT AND OUTPUT: The modulator adopts VHF operating frequency controlled by PLL, HD Multimedia Interface input, AV output, RF output. 3DUAL FORMAT: High definition RF modulator, support NTSC and PAL TV format output, the image is clear, to meet your different needs. 4PLUG AND PLAY: No need to install drivers, flexible, plug and play, compact and portable RF modulator, easy to use at any time. 5MULTIPURPOSE: This modulator is not only suitable for your TV, but can also be connected to computers, laptops, game consoles, AV equipment, etc.