Features: Noise Canceling Microphone: Built-in rotating noise-cancelling microphone can block unwanted background noise for accurate voice captures, ideal for clear conversation. Wide Compatibility: USB plug and play, no external power or drive required. Compatible with desktop computers, laptops and other USB audio devices. In-line control: With in-line control, you can easily control the volume up and down, mic mute and speaker mute. Protect ears: Avoid momentary high-pitched sounds and sounds with peaks above 118 DB, protect your hearing. Specifications: Plug type: USB Frequency response range: 20-20K (Hz) Impedance: 32 (Ω) Sensitivity: 100 (dB) Wire length: 1.8 (m) Speaker diameter: 40 (Φmm ) Earplugs/headphones material: PVC Earphone cable material: TPU Utility: General purpose, ordinary earphones, noise canceling earphones, voice earphones, audio earphones, audio earphones, audio earphones, audio earphones, video earphones, audio headphones, video headphones, gaming audio and video headphones, gaming earphones headphones. Package list: 1 x USB headset with microphone