1.GFSK digital modulation 2.USB transceiver 3.Speaker: 2x40mm 4.30M operation distance 5.Built-in MIC for internet talking

Digital 2.4G wireless computer headphone with MIC&USB transceiver 

The GD-243 is 2.4G digital USB wireless computer headphone. Clear voice chat for Skype,MSN,QQ with built-in microphone.

Features:

Fold flat design 2.4GHz ISM band with 2MHz bandwidth GFSK digital modulation Headphone driver unit 2x40mmSimultaneously listening stereo and talking  Clear voice chat for Skype,MSN,QQ with built-in microphoneWired stereo headphone is availableAuto power off function to provide lower power consumption 

 Technical Data:

   Frequency: 2.4GHz ISM Band

System: GFSK modulation frequency hopping Mode: Stereo Effective Range: up to 30 meters Charge Voltage: 5V SNR: 90dBr@1KHz Mic Frequency response: 50~80000Hz Headphone Frequency Response: 20~150000Hz Headphone Continuous use time: more than 10 hours (full charge)

Digital 2.4G wireless computer headphone with MIC&USB transceiver