USB Headphone with Microphone HP-5590

AAA.USB Headphone with MIC .Speaker Driver Diameter:40mm .Sensitvity (S.P.L):105dB+3dB/mW (at 1KHz) .Impedance:32 Ohms .Frequency Response: 20Hz~20,000Hz .Rated power:100mW .Power Capability: 1000mW .Cable Length: Approx.2.5m+0.3m .microphone Unit:6x5mm/ -58dB+2dB .Plug Type:USB 2.0 SPECIFICATION 1. There will be more than 80 dB when toning the headphone, and adjust the frequency response of speaker with st 20 Hz 20,000Hz in advance. 2. Speaker: 40mm 3. Microphone inputs 16 Bits, 48Khz in one track, and there will be more than 50 dB when toning the headphone, and adjust the frequency response of speaker with steady 100 Hz to 100KHz. 4. Clrcuity : USB Currency chief serial circuitry of intel. 5. Cable Langth: Approx. 2m. FEATURES OF THE PRODUCT 1. To finish the most precise speech recognition 2. It is easiest to run the internet talking, chatting and internet conference. 3. To enjoy the surprising stereo affect when you playing games and watching DVD. 4. The digital circuit can make the tone of headphone and microphone reach its clearest effect. 5. Singal-to-noise atio is 24 Bits, that frequency can make the digrtal sighal change into hte high quality like frequency of phonology. 6. The digital singial processing is 32 Bit that is can amend and add to the aural signal, and make it reach the higher sterophony and the more clearer speech recognition effect. 7. Graphic device is installed rock music /jazz/classical music/country music/blue music software, the volume, at and bass vcice control. 8. The lowest system requirement, you should have the driver program audio adjustment center software basjcally. 9. Multichannel technology, and make the fictitous 5.1 track come true. 10. Let you enjoy the wonderful multimedia audio and without sound card. 11. Dynamic circumrotate sound field. 12. Headphone and loudhailer model can be changed freely. 13. Microphone switch can be changed freely. 14. Position of simulation loudhailer can be adjusted freely. 15. Audio mixer function. 16. Microphone recore function. 17. Level output adjustment. 18. Pre-set 16 types of rhythm model. 19. Pre-set 23 types of sound field model. 20. Conversion of an analog signal (Mike/CD/VCD/DVD/MP3/TV/recorder) to a digital signal and to keep the functions. 21. To adjust volume on line and mute of microphone.