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SMBT-4081

Driver Unit: Φ40*2

Frequency Response: 20-20KHz

Impedance: 26Ω±15% at 1KHz

Sensitivity: 96±3dB at 1KHz 1mW 

THD: ≤3% at 1KHz 1mW

Max Input Power: 40mW

Bluetooth ver.: V4.1

Chip: VIMICRO

Working time: 15 hrs 

Standby time: 500 hrs 

Charge connector: Micro USB

Charging time: Around 2.5 hrs