HD 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 power, no power 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, VCR, DVD recorders, etc. Size: 2.36 x 2.09 x 0.79 inches Input ports: 1xRCA Output ports: 1xRF RF frequency: 67.25Mhz 61.25Mhz Material:plastic colour:White Package Contents: 1 x AV to RF Converter 1 x USB Cable 1 x RF Cable Only 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.