Features1.The RF converter can easily help you convert HDMI signal to RF signal, easy to use.2.Display 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.3.The 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.4.The 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.5.This device cannot work in reverse. Support input HDMI resolution: 480I/480P/576I/576P/720P/720I/1080I/1080P.specificationItem Type: ConverterMaterial: ABSColor: WhiteSupport Input HDMI Resolution: 480I/480P/576I/576P/720P/720I/1080I/1080PPackageList1 x Converter1 x Power Supply1 x Remote Control (CR2025) (Batteries are NOTincluded)1 x Audio Cable1 x User ManualNotePlease check the support format of your TV before purchase to see if it supports one of the following TV formats: PAL BG/PAL l/PAL DK/NTSC M.Please note that this product signal line is not compatible with North American countries and cannot be connected.