Impecca HSB100K Bluetooth Stereo Headset with Built in Microphone, Black Enjoy up to 15 hours of superb quality music streamed wirelessly from this Bluetooth headset and hands-free calling device Headset has been designed for comfort, featuring soft ear cushions, adjustable headband, and lightweight design Features DSP (Digital Signal Processing) technology with noise reduction Echo Cancellation Use with Bluetooth Computers, MP3 Players, Smartphones & Tablets