* Connect the transmitter to USB port of the computer. The indicator lights around will be lighted, the computer will identify USB audio mode and change it to sound source output mode. It's no need to install any drives. Let the computer play music or chat on line wirelessly, you will enjoy the sound from the USB IR Headphone.
* The head of the transmitter should face to the receiver, the short distance will be better. If the USB port on the computer or notebook is down, please use retractable USB line to make the head of the transmitter facing to the receiver.
* Build-in high sensitive microphone on the transmitter. It will help you talk wirelessly. The valid semi-diameter of microphone is about 2.5 meters.
Infrared receiving headphone:
* The Infrared Computer Headphone shoud use 2 AAA batteries(not included)
* With adjustable volume wheel
* Comes with a USB charger cable that can charge for the rechargeable AAA battery
* There is a sound source input and output jack existed under the switch button of the headphone. it can be used to input or output sound source. When the heaphone power is finished, you can put one 3.5mm stereo sound line between the headphone and the sound source output jack. PC Wireless Headphone will work as a wire-headphone(at this moment, the headphone should be switched off). Or switch on the headphone and insert other wire-headphone. Two people can hear the voice at the same time.
* Transmitting medium: infrared(850nm)
* Signal to noise: above 60db
* Transmitting mode: stereo
* Transmitter power: USB 5V
* Transmitter power consumption: 100mA
* Microphone Effective transmitting semi-diameter: 2.5 meters
* Effective transmitting distance: 5 meters
* Headphone power: 2AAA battery
* Frequency response: 30Hz to 20KHz
* Power for charging: 55-65mA
* Total weight: 390g
* 1 x IR Stereo Wireless Headphone
* 1 x USB charger cable
* 1 x USB retractable cable
* 1 x USB transmitter
* 1 x Manual