Features 1、Using existing RF circuit in general homes. 2、Sharing of STB, DVD with a few rooms. 3、Flexibility in setting TV format such as PAL/NTSC and Sound IF to accommodate users from all part of the world. 4、With the wide frequency range of 471.25MHz-885.25MHz, selectable transmitting frequency and correspondence frequency display and in built memory will minimize and avoid interference. 5、The use of broadcast standard PCB circuit designed enhanced stability and better picture quality further. 6、External setting for NTSC/PAL B/G,I,D/K,L.M/N TV formats for global use. Specification Specifications: RF Frequency Range: 471.25MHz-885.25MHz Channel Range: PAL: 21-69; NTSC: 14-83 Default Factory Setting: Channel 21 (471.25MHz).PAL RF Output Impedance: 75Ω unbalanced Video Input Impedance: 75Ω TV Format: PAL/NTSC Sound Carrier Frequency: 4.5 / 5.5 / 6.0 / 6.5MHz IR Remote Control Frequency: 34-56KHz Remote Distance: ≥7m Power: USB 5VDC Power Consumption: ≤1W Material: ABS Item Size: 104 * 68 * 24mm / 4.09 * 2.68 * 0.94in Item Weight: 98g / 3.46oz Package List 1 * RF Modulator 1 * USB Cable 1 * IR Repeater 1 * Manual (English)