Usb Headphone

*Driver Unit: 2pcs dia. 40mm *Frequency Response: 20-20kHz *Impedance: 32ohm *Sensitivity: 110dB *Plug: USB 2.0 *Characteristic Build-in Sound Chip Latest USB technology: Uses the latest USB circuitry to give a very low internal noise and a high signal-to-noise ratio; No auxiliary power or sound card required. Full-duplex capability: Full-duplex (microphone as well as speaker) USB adapter for the ultimate in both input and output performance. Plug-and-play convenience: Plugs right into your USB port Uses standard Windows drivers: Works with Windows 98SE, ME, 2000, XP, and Vista operating systems; No additional software required!

Supplier: Earphone, headphone and USB flash drives

Mp3 earphone 1. Speaker diameter: 14.8mm 2. Sensitivity at 1khz: 110+/-3db 3. Impedance: 32+/-15%ohm 4. Mylar: 6u 5. Frequency response: 50-18000hz

Driver unit·ª dia.40mm Frequency response·ª 20-20khz Impedance·ª 32 ohm Sensitivity ·ª 105db, 111db (at 1 khz) Noise reduction level f¦13db at 300hz Plug·ª ¦ª3.5mm, with ¦ª6.3mm adapter Battery ·ª 1pcs aaa bettery We combine active noise cancellation with style. Comfort and sound quality to create a full, rich sound anywhere you use them. Thanks to the soft ear cushions and lightweight design you'll enjoy superior comfort for hours of listening pleasure. Plus, you'll experience optimal sound quality and speech clarity even at lower volumes, easily adjusted by the in-line volume control. Requires one aaa battery (not included) .It is compatible with all ipod, mp3, cd, dvd players, computers, in-flight and home entertainment systems

Anc in-ear earphone Driver unit 2pcs dia8mm Frequency response 20-20khz Impedance 32 ohm Sensitivity 113db, 120db (at 1 khz) Noise reduction level ¿¬p11db at 300hz Plug dia 3.5mm Cord length 2.0m Battery aaa 1pcs We combine active noise cancellation with style. Comfort and sound quality to create a full, rich sound anywhere you use them. Thanks to the soft ear cushions and lightweight design you'll enjoy superior comfort for hours of listening pleasure. Plus, you'll experience optimal sound quality and speech clarity even at lower volumes, easily adjusted by the in-line volume control. Requires one aaa battery (not included) .It is compatible with all ipod, mp3, cd, dvd players, computers, in-flight and home entertainment systems

Anc689 Driver unit 2pcs dia40mm Frequency response 20-20khz Impedance 32 ohm Sensitivity 110db, 116db (at 1 khz) Noise reduction level f¦13db at 300hz Plug dia3.5mm Cord length 2.0m Battery 1pcs AAA battery We combine active noise cancellation with style. Comfort and sound quality to create a full, rich sound anywhere you use them. Thanks to the soft ear cushions and lightweight design you'll enjoy superior comfort for hours of listening pleasure. Plus, you'll experience optimal sound quality and speech clarity even at lower volumes, easily adjusted by the in-line volume control. Requires one aaa battery (not included) .It is compatible with all ipod, mp3, cd, dvd players, computers, in-flight and home entertainment systems

Supplier: Microphones, headphones, earphones, earplugs, USB flash disks, wireless & cable & 3D mouses

Product functions: 1. Wireless headphone functions 2. Headset with fm radio functions 3. Wireless net chat 4. Monitoring 5. Wired earphone 6. Super bass 7.Cancelling noise 8.Dc4.5v power supply. Transmitter *transmitting frequency: 84~87mhz Power supply: aa dc 1.5v batteries 2pcs *receiver Receiving frequency: 84 ~ 108mhz Max receiving range: 30m Fm radio frequency: 88~108mhz Q'ty:20pcs/ctn G.W:11.5 kgs N.W:10 kgs Size:55*45*46cm

Supplier: USB cable, USB charger, USB adapter, earphone