Features:<br />Ergonomic Design:</strong><br />Adjustable headband length, soft ear cushion for maximum wearing comfort, suitable for different head size wearing.<br /><strong>Multi-purpose Headphones:</strong><br />Fits for making office business conference calls, call center phone calls, speech dictation, online courses, language learning, etc.<br /><strong>Noise Canceling Microphone:</strong><br />Built-in noise-canceling rotatable microphone can block out unwanted background noise for precise voice picks-up, ideal for clear conversation.<br /><strong>Wide Compatibility:</strong><br />USB plug and play, no external power or drive needed. Compatible with desktop computers, laptops and other USB audio devices.<br /><strong>In-line Control:</strong><br />With in-line control, you can easily control volume up and down, mute mic and mute speaker.<br /><br /><strong>