Easy-to-adjust, small-diameter, swing microphone for perfect positioning. High-quality 40mm drivers are adopted as headphones that can listen to the call or enjoy music . Electret condenser mic with unidirectional pick-up pattern. Equipped with convenient microphone mute button that can quickly cut the call . Closed-back dynamic design ensures superior isolation . Frequency response: 10Hz-24kHz. 2.0m cable with 3.5mm stereo connectors for headphone and mic