1. Big sound pressure protection, care for students hearing
2. Noise reduction microphone, suppress noise more clearly
3. Using DSP digital signal processing system, high-speed real-time processing of sound signals, restore rich sound details
4. Plug and play, convenient and fast, no need to install additional driver software
5. Adjustable head beam, comfortable to wear, not tired for a long time
6. Features: Exam headphones, noise reduction microphone, hearing care, DSP sound card, comfortable to wear, plug and play
7. Cable length: 2.8m
8. Impedance: 32 ohms
9. Sensitivity: 98dB
10. Wearing method: head-mounted
11. Headphone output audio source: PC computer
12. Plug type: USB-A
13. Sounding principle: moving coil
14. Frequency response range: 20
