Features: 1The RF converter can easily help you convert HDMI signal to RF signal, easy to use. 2Display DVD/game/set-top box (HAMI signal source device) on normal or old TV, long-distance signal transmission via coaxial cable. The converter outputs an analog signal instead of ATSC format. 3The output TV/RF signal frequency is 61.25MHZ. Please use the search channel function of the TV to get the signal, then press SYS to adjust the format (PAL or NTSC) and correspond to the TV until you get clear picture and sound. 4The output image quality will be lower than the RF analog signal (more like 480p). With the remote control, you can adjust the output screen and amplitude including brightness, contrast, and chroma. 5This device cannot work in reverse. Support input HDMI resolution: 480I/480P/576I/576P/720P/720I/1080I/1080P. Package included: 1 x Converter1 x Power Supply1 x Remote Control (CR2025) (Batteries are NOT&nbspincluded)1 x Audio Cable1 x User Manual