computer wireless earphone with microphone DA601

computerwirelessearphone with microphone DA601 computer wireless earphonewith microphone DA601 for computorcomputer wirelessearphone with microphone DA601 for chattingcomputerwirelessearphone with microphone DA601 forprotecting your earcomputer wirelessearphone with microphone DA601 forenjoy yourself Feature Enjoy stereo music wirelesslyportable foldable design,just2cm thicknessremote wireless two-way chat on the internetHI-FI,audiophile grade sound qualityremote control to add further mobilityhigh-sensititive ,multi-directional speaker for virtual surrround soundFrequency :2.404-2.479GHZ ISM BANDSupporting operating system :windows2000/xp/vista/windows7pairing way:automatic pairiingoperating distance:around 10-15m without obstruction like building or magnetic fieldSepecificationUSB trasmittervoltage:5VDCElectronic current:typic value 50mAFrequency:2.4GHZ ISM BNADpower 5dBmmodulate:GFSKDistabce; 10-15mheadphonevoltage;3.7VDCElectronic current:50mAFrequency response 20-15000HZAudio outout 600mVp-pFrequency:2.4GHZDistortion:<1%S/N ratio>70dbseperation>50dbautomoticlly power off if no single was received within 10 minutespicturecomputer wirelessearphone with microphone DA601