Model Number: ST-04 Description: RF MODULATOR TV System: PAL Color: White RF modulator is an accessory for TV games, web TV, video camera and video computer. When connected to your TV, the rf modulator converts line-level signals to vhf thus turning your television a monitor (regardless of age or make). Heavy duty power supply Low power Model Number: ST-04 Description: RF MODULATOR TV System: PAL Color: White RF modulator is an accessory for TV games, web TV, video camera and video computer. When connected to your TV, the rf modulator converts line-level signals to vhf thus turning your television a monitor (regardless of age or make). Heavy duty power supply Low power consumption Specification: RF Output Level: 66dB uV RF Output Channels : 3 / 4CH (PAL M) Audio Input Impedance: 13 +-3K ohm RF Input Impedance: 75 ohm TV to ANT ion: -2dB Input A: 3 RCA A/V Input Power Source: AC 220V Input B: 75 ohm Antenna Input Mini QTY: 1000PCS