Easily fits into a bag or briefcase, making it a companion you can take with you at any time. The slim design delivers uncompromising sound. Specially tuned, powerful speaker drivers deliver high-quality sound. Two noise-canceling microphones provide clear audio for conference calls on the go or in noisy environments. Up to 10 hours of continuous playback is possible. In addition, the mobile battery function can be used to charge smartphones and other devices.