•No external power required, Compatible with USB1.0/2.0/3.0, USB Drive Free Connection, Omni-Direction and Support PnP USB. Built-in Ring and Sound Card. •Support: Skype, UUcall, MSN, Talk, Yahoo, Sip Discount, X-Lite,Eyebeam, X-pro, Sipgate, IPhone, Vonage, UBIFONE, Imtel, Voip Buster, Voip discount ,Voipcheap, VOIP Stunt, SparVOIP, INTERNETCALLS, NetAppel, YpoivyY,FreeCall, WebCall, VOIP RAIDER, VoipWise Onet2phone •Built-in Echo tone to eliminate chip, can be a Music Player. Work for laptop as a portable design. Technical parameters: ✔Sound function sound sampling frequency: 32KHz ✔Echo cancellation: >58Db ✔Support ACG(Audio automatic gain control) Function. ✔Electrical specifications operating voltage: 4.5V ~ 5.5V ✔MIC:34dB, Frequency: 20 ~ 16,000 Hz, SPK:4Ω8W Speaker. ✔Full 1 Year WARRANTY with Replacement Coverage and Refund Unconditionally & Immediately from Sonobono, If you have any questions with the items, please feel free to contact us by email. Please remember that offer best solutions and do effective actions is our initial but final aim, you are very important for us.
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