• Bluetooth Version: 5.2
• Battery Capacity: 850mAH
• Working Distance: 10m
• Battery Life: 46 hrs
• Frequency Response: 20Hz~20KHz
• Mic Sensitivity: 42dB +/- 3dB
• Transducer Type: Dynamic
• Operating Principle: Open Air
• SPL 1mW: 99.8 dB
• Nominal Impedance: 38 ohms
• Driver Matched dB: .1 dB