The Xtream H5 Multimedia Headset with Microphone is stylishly designed for active lifestyles. The 4-band 3.5 mm jack allows the headset to work directly with most mobile phone\/audio devices. The 3.5 mm adapter allows you to use the headset on computer systems that require separate input\/output connections. The built-in omnidirectional microphone picks up sound with reliability and is flexible which allows you to adjust the position for optimal performance. Earcups and headband are adjustable to ensure the perfect fit, while the custom padding provides a soft comfortable fit.