Wired Headset with Mic, 3.5mm and Noise Canceling Microphones

Quantity in one box: 40
Gross weight: 8.6kG
Carton size: 74*37*31

Category:
2.4g frequency range: 2.4GHz~2.472GHz
Bluetooth: version; 5.4, chip brand model; SMIC AB5602, distance; 10 meters
Features 2.4g, Bluetooth
Audio frequency range: 20~20 kHz
Speaker: 40mm, Impedance: 32Ω±15%, Sensitivity: 103±3 dB
Microphone: 4522 omnidirectional, impedance 2.2K -42dB
Battery: 300mAh, charging time; 1-3H, standby; 365 days, working time; 4~8H, connection method; Type_C USB
Earmuffs: PU leather sweat-proof, soft and comfortable
Collapsible: not collapsible
Material: ABS+metal+PU leather
Appearance: spray high-grade hand paint