We are offering do you have old tvs without av jacks do not get disappointed this rf converter modulator helps convert and adapt older tvs to vcrs, dvd players, camcorders and even dth etc. You can also distribute same signals to other tvs. clear sound & video audio carrier frequency:5.5mhz antenna input: 45-1000 mhz power supply: ac220v±15% power consumption: 1w input : 3 rca (red yellow white) output: rf (anteena)