Feature: 1. Sharing Funtion: AV to RF converter with IR repeater can share set top boxes and DVDs with several rooms. 2. Worldwide Use: RF modulator can set the flexibility of TV formats such as PAL NTSC and IF to meet users around the world. 3. Wide Range: Modulator has a wide frequency range of 471.25MHZ‑885.25MHZ, selectable transmit frequency and corresponding frequency display and built in memory will minimize and avoid interference. 4. PCB Circuit Design: The AV to RF TV modulator uses broadcast standard PCB circuit design to further enhance stability and better image quality. 5. Applicable: AV to RF TV modulator for global or external setup using NTSC PAL B G, 1, D K, L M N TV formats. Specification: Item Type: RF Modulator Material: ABS RF Frequency Range: 471.25MHz-885.25MHz Channel Range: PAL:21-69;NTSC:14-83 Default Factory Setting: Channel 21 (471.25MHz) PAL TV Format: PAL NTSC Sound Carrier Frequency: 4.5 5.5 6.0 6.5MHz IR Remote Frequency: 34-56KHz. Package List: 1 x RF Modulator1 x USB Cable1 x IR Extender1 x Manual1 x Double Sided Sticker