Rca / A / V Composite Video Cable To Rf / Coaxial / Coaxial Converter -compatible Modulator Tv HD RCA AV Video Converter Box CVSB to RF Video Converter Adapter Compatible with RF 67.25Mhz 61.25Mhz AV to RF TV scaler Switcher.No need to install drivers, portable, flexible, plug and play. Low , no adapter.This AV to RF signal converter will convert video signal or audio signal into RF composite video signal and audio signals, while supporting DVI system side signals. So that it can be played on TV, VHS VCR, DVD recorders, etc.Size: 2.36 x 2.09 x 0.79 inchesInput ports: 1xRCAOutput ports: 1xRFRF frequency: 67.25Mhz 61.25MhzMaterial:plasticcolour:WhitePackage Contents:1 x AV to RF Converter1 x USB Cable1 x RF CableOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.