Plantronics Audio 628 USB Stereo Headset (Skype Certified, Noise-Cancelling Mic) 100% Original, Brand New and Sealed Voice. Music. Gaming. This incredibly lightweight headset is easy to put on and take off. Digital signal processing provides clear HD sound on both sides of the call. Acoustically tuned audio drivers provide rich, resonant stereo sound for music, video and games. Best thing- answer and end Skype calls right from the inline control for Windows. - Easy to wear, easy to use. - Answer and end Skype calls right from the headset - Noise-canceling microphone cancels noise, not your voice - Lightweight design and comfortable ear pads keep you listening - Rich HD sound puts you there - Digital Signal Processing - Acoustically tuned EQ delivers high-performance audio - Wideband acoustic echo cancellation eliminates voice echo Performance Parameters: Speaker Driver Size: 32mm diameter Speaker Frequency Response: 20Hz - 20kHz Microphone Frequency Response: 100Hz - 10kHz 48kHz wideband mic with 16-bit output High-fidelity 24-bit Stereo: 48kHz sampling rate USB 2.0 full speed compliant Cable length: 2 meters Compatibility: MAC, Windows - USB Plug and Play Item went through I Love PC Atbp. Quality Control and Warranty Sticker Inclusion 1 Year Product Warranty. All shipping fees for warranty claims to be shouldered by the buyer. Reference: Plantronics