Lightweight headset features an adjustable, behind-the-head design for all-day wear and clear, digital stereo sound. 2.4 GHz RF wireless connection lets you chat and listen to music up to 40 feet away from your computer. Built-in equalizer optimizes sound for voice, music and video. Audio controls to adjust volume, pause music and navigate playlists are on headset and are compatible with Windows MediaÂ® Player and iTunesÂ®. Noise-canceling microphone automatically mutes when rotated away from face. Headset delivers up to six hours of talk time from a single charge.