Allows you to repeat infra-red control signals from your TV to remotely located equipment. Bi-directional IR?control allows control of both AV source equipment & television from either room. Easily powered by any USB port either on the rear of your TV, Amplifier or from a nearby wall outlet. Allows easy connection to IR targets & emitters (included). Note: A single target and emitter are provided with this kit, however if you wish to use bi-directional IR control an extra target (A 0923) and emitter (A 0924) must be purchased. Features Compatible with all universal full band carrier frequency infrared remote Better IR receive sensitivity (distance), over 7 meters Long range transmission up to 100 meters (open space) 915.1 MHz RF technology to ignore current 433MHz RF-interference FSK modulation: Better signal sensitivity than ASK modulation Better anti RF-interference than ASK modulation Better noise suppression Digital encrypted function ensures safety and reliability Supports Individual and broadcasting IR control Channel pairing function. Open Range: 100m (open space) IR Frequency: 20-60kHz Receiving distance: 7m Max operation current: 15mA Power: Requires USB port (1A).