Plantronics Multimedia Stereo Headset (Music, Gaming, Voice) (Audio 350) 40mm speakers convey rich, resonant stereo with maximum bass response. Inline volume and mute offer easy access and control. Lightweight, flexible headband & swivel-mounted pillow-soft ear cushions deliver comfortable all-day wear. Noise-canceling microphone cuts out background distractions. QuickAdjust telescoping boom assures ideal placement when on, stows discreetly when off.