The Plantronics .Audio 478 USB stereo headset folds up to travel, so you get great audio on the go. Lightweight, and with intuitive volume, mute and call control buttons, it’s comfortable and very easy to use. And it’s Skype certified, with an advanced noise-cancelling microphone and 24-bit Hi-Fi stereo HD sound for crystal clear audio and conversations.Noise-Canceling Microphone for Clear Conversations The Plantronics .Audio 478 USB Stereo Headset uses a combination of audio-enhancing technologies to promote clear, noise-free conversations. The noise-canceling microphone filters out static without muffling your voice, crisply conveying each word. You will be able to communicate more effectively, without the frustration of cutouts and feedback. In addition, the microphone actively works to tune out background noises, so you get crystal clear, noise free Skype calls. It also uses Digital Signal Processing technology to cancel out echoes and boost voice signals, improving clarity.Stereo Headphones Deliver Rich Audio Performance With its 32-millimeter drivers and expert sound engineering, the headset is capable of delivering crisp, high-definition audio. The headphones boast a 48 kHz sampling rate, which ensures faithful reproduction of your computer’s audio. Meanwhile, the built-in EQ adjusts low and high frequencies to create a clear, balanced tone that is ideal for conversing. The headphones are also well suited to all your PC needs. Your music will sound rich and full, thanks to the headset’s 24-bit audio and inclusive dynamic range. Your gaming experience will improve as well–you will be able to hear in-game audio cues more clearly and communicate with your teammates more effectively. Portable, Comfortable Design Featuring a convenient folding design, the 478 Stereo Headset can easily be stored in a laptop bag or suitcase. The headphones are covered in soft foam ear pads to ensure comfort during extended talking sessions. Additionally, the headset’s 2m cord gives you flexibility to move around as you talk. Inline Panel for Easy, Accessible Control The headset also features an inline control panel, which gives you quick control over your Skype calls. A call button allows you to answer and end calls with a push*, while a microphone button lets you mute yourself just as easily. You can also adjust volume level with two conveniently placed buttons, which increase or decrease your call’s volume incrementally.