1. High elastic metal bracket, good quality and good strength; 2. Super soft and comfortable headrest and earmuffs, comfortable to wear; 3. The microphone can be rotated 300 degrees, and can be reliably positioned to the left and right ear; 4. PU wire, high tensile strength, long service life; 5. The volume of the speaker is adjustable, suitable for various noisy environments; 6. Microphone type: dual electret microphone 7. Working voltage: -8-32V 8. Frequency response: 500Hz-8kHz 9. Microphone sensitivity (1k Hz): -46dB±3dB 10. Speaker diameter: 50mm 11. Speaker impedance: 157 ohms 12. Loudspeaker rated power: 40mW 13. Speaker sensitivity: 119+/-3dB 14. Noise level: -24dB 15. Jack: Mini XLR 5Pin jack
