HDMI-Compatible to RF coaxial converter converts HDMI-Compatible digital signal to RF analog signal. You can use the remote control to switch the output screen up and down, as well as amplitude, brightness, contrast, and chroma. Display DVD/Blu-ray players, game consoles, set-top boxes or PC computers with HDMI-compatible source device coaxial analog signal output on old TVs. You can also display multimedia documents from laptops to the audience through a large-screen projector. HDMI-compatible coaxial output, which can transmit signals over long distances through coaxial cables and use them in different rooms. Specification: Size: 10x6.5x2cm. Material: ABS. Color: show as pictures. Note: There might be a bit color distortions due to different computer resolutions. There might be a slight errors due to different hand measurement. Package Included: 1 x Coaxial Converter. 1 x manual. 1 x S terminal cable. 1 x remote control.