When you're trying to focus, work or relax, you need pure peace and quiet. 3M™ Quiet Space™ Headphones are engineered to mask distracting voices and reduce disturbances at home, at work or anywhere you need to find your focus. Adjustable white noise technology helps you customize your own calm environment—a quiet, peaceful space that's truly yours. Earpiece Type: Ear Cushions; Earpiece Material: Polyurethane Foam; Microphone (Yes/No): Yes; Headset Features: 30+ Hours Battery Life; Bluetooth Connectivity; Built-in Microphone; Sound Blocking.