Item Type: RF coaxial converter Support Input HDMI Resolution: 480I / 480P / 576I / 576P / 720P / 720I / 1080I / 1080P. Material: ABS Color: White Button Battery: CR2025 (not included) Package List 1 x For Nsendato Converter 1 x Remote Control 1 x Cable 1 x Power Cord 1 x User Manual in English Please check the format supported by the TV before placing the order, because this converter only outputs four kinds. TV formats: PAL-BG, PAL-1, PAL-DK and NTSC-M. If your TV does not support 4 of them. Kindly, the converter doesn't work And the device can't work in reverse.Battery is not included. 1HDMI to RF coaxial converter adapter can be used for TV, which can convert HDMI digital signals to RF analog signals. 2It can display DVD / for Blu-ray players, game consoles, set-top boxes or PCs with coaxial analog signal output from hdmi source devices on ordinary old TVs, or display multimedia files from laptops to viewers through large-screen projectors. 3HDMI RF signal transmitter for HDMI coaxial output can make long-distance signal transmission in different rooms over coaxial cable. 4RF coaxial converter outputs only analog signals, and the image quality will be lower than RF analog signals (more like 480p). Moreover, it is not applicable to ATSC format 5Via HDMI 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 chrominance.