Headset with microphone

BH69 Bluetooth USB compatible call center headset PC computer 35mm business headset telephone connection student headset with microphone Specification Model BH69 Bluetooth compatible version 5.0 Microphone size 6.5 5mm pointing a way Sensitivity: 443 decibels Impedance≤2.2KQ Microphone pole length: about 23 cm Transmission rod diameter: 30mm Impedance: 32 Frequency response: 20Hz-20kHz SPL: ≤96dB±3db Plug: USB+3.5mm level four Receiving distance :≤10m Power supply: 160mAh Charging type: Micro USB Charging time: about 1.5 hours Playing time: about 8 hours Standby time: about 100 hours Product size: 165*155*62mm Product weight: 49g Packing size: 185*175*80mm Package weight: 125g Notice: Due to different displays and lighting effects, the actual color of the product may be slightly different from the color shown in the picture. Thanks! Due to manual measurement, please allow a measurement deviation of 1-2cm.