... usb transmitter, 4.3.5V audio input 5.OEM welcome. Product: 2011 New Designs Wireless Headset with 10M Transmitting Distance and Wireless Net ... is a wireless stereo headset , adopting 2.4G RF technology,which can detect the frequency changing from the transmitter and acts as ... an anto channel scan ,applicable for computer ,PC ,TV set ,DVD/CD player ,MP3/4 ,and other ...