awei GM-5 USB + 3.5mm Ambient Light Gaming Wired Headset with Microphone(Black)

1. Microphone: -42+/-3dB /2.2K/20Hz-16KHz (omnidirectional)2. Speaker: 40mm 32 ohm /20Hz-20KHz (dynamic)3. Output power: 20mW (1KHz 0dB)4. Signal-to-noise ratio: greater than 110dB5. Distortion: less than 1 percent (1KHz 0dB)6. Scope of use: desktop computer/laptop, etc.7. Working current: about 60mA8. Input voltage: USB 5V9. Ergonomic design, comfortable to wear