Features:  High Sensitivity: Real time transmission without any delay with its high sensitivity sensor. Energy-saving and Environment-friendly: This transmitter can work in most lighting environment. Strong Compatibility: Suitable for TV set, STB, DVD, DVR, PVR, video recorder, TV receiver, and so on. Compact Size Design: It is light-weight, small-size and solid, with 2m emission line and 1.4m recevive line, long enough to put in anywhere in your house. High-quality Cord: Made of high-quality plastic shell and cooper wire, the cord is durable. Note: The IR repeater is suitable for Digital TV set-top box, DVD, air conditioning, hard disk player, karaoke remote song-ordering device, monitoring hard disk video recorder, set-top box installation of the hotel or home , etc. Specifications: Model: CHUF0301 Material: Plastic Power Supply: USB or DC 5V Cable type: cooper wire Emission wavelength: 960NM Emission distance: 20-50cm in transmitters; 10-15m in Remote Controls Receive Frequency: 38KHZ Receive distance: 10-15m Color: Black USB Cable Length from USB port to the Receiver: approx. 137cm / 53.94in  Cable Length from the Receiver to the Emitter: approx 198cm / 77.95in Package Size: approx. 14 * 6 * 3cm / 5.51 * 2.36 * 1.18in Package Weight: approx. 42g / 1.48oz Package List: 1Pc * IR Infrared Remote Transmitter