1High Definition Multimedia Interface to RF coaxial cable adapter for TV, convert High Definition Multimedia Interface digital signal to RF analogo signal. 2For DVD players, game machine, set-top box, computers and other devices with High Definition Multimedia Interface source device coaxial analog signal output. 3High Definition Multimedia Interface coaxial output, can use coaxial cable to enable long-distance signal transmission among different rooms. 4RF coaxial converter, only output analog signal, the image quality will be lower than RF analog signal (more like 480p); not applicable to ATSC format. 5Support various High Definition Multimedia Interface resolution, including 480I / 480P / 576I / 576P / 720P / 720I / 1080I / 1080P. Item Type: High Definition Multimedia Interface to RF Adapter VGA Interface: Connect to computer VGA input.AV Interface: Connect audio or video signal from DVD or VCR, or audio signal from PC.DC 5V: Connect the DC 5V power adapter.Remote Control Battery Model: CR2025/150mAh (not included) Voltage: 100-240V Support Input High Definition Multimedia Interface Resolution: 480I / 480P / 576I / 576P / 720P / 720I / 1080I / 1080P. 1 x High Definition Multimedia Interface to RF Adapter 1 x Remote Control 1 x Power Cord 1 x RF Cable 1 x User Manual 1. High Definition Multimedia Interface RF modulator with remote control, you can use the remote control to switch the output screen up and down as well as amplitude, brightness, contrast and chroma.2. Please check the formats supported by the TV before ordering, because this converter only outputs four TV formats: PALBG, PAL1, PALDK and NTSCM. If your TV does not support any of them, the converter does not work, and the device cannot work in reverse.