Feature:1. Supported Devices: HD Multimedia Interface in coax RF out composite converter will connect your streaming media players like for iOS TV, for Amazon Fire Stick, Fire TV, HD TV tuner, for Android TV box , satellite set top, cable box or game consoles like for PS3, for PS5, for Xbox 360 One, for Switch and even DVD, players, VCR, Laptop, PC or computer etc., newer HD Multimedia Interface equipped components with older TVs or video equipment that don't have HD Multimedia Interface nor AV jacks.2. Multifunctional: This powerful and functional RF demodulator is compatible with HD Multimedia Interface 1.4 and supports NTSC and PAL 2 different TV formats, selectable output channels, HD multimedia interface and AV input, to meet your different needs.3. Easy to Use: No drivers, adapters needed, plug and play, easy to use. And it also comes with channel switch which will not interfere with existing players. This HD multimedia interface modulator can adjust the AV output level, 1080P, 1080i, 720P, 576P, 576i, 480p multi resolution support, analyze accurately, use more flexible.4. AV Input: Converts line level composite video or analog stereo sound signals to RF (coaxial) for connection to old TVs that do not have line level AV jacks. And the volume of sound and the brightness of video is adjustable.5. HD Multimedia Interface Input: Convert HD Multimedia Interface digital signals into analog TV (RF) signals which have ultra long distance transmission to achieve watching movies, playing games, sharing program videos pictures and photos on CRT TV or other old televes in different rooms or farther away from the HD Multimedia Interface video source.Specification:Item Type: HD Multimedia Interface to RF ModulatorMaterial: Metal, PlasticTV Standard Format: PAL, NTSCFrequency Range: 47870MHzBandwidth: 6MHz, 7MHz, 8MHzOutput Level: 8095dBuV AdjSound System: M=4.5MHz, B/G=5.5MHz, I=6.0MHz, D/K=6.5MHzRF Output: F FemaleHD Multimedia Interface Version: 1.4HDCP Version: 1.4.Package List:1 x Modulator1 x Instruction Manuals