TS-Bgo

Foldable headband speaker with Microphone using USB plug
 
Speaker
Speaker Diameter: 40mm
Impedance    32Ω+-15%
Frequency Range:     20-20,000Hz
Sensitivity:     116+-3dB at 1000Hz
Plug:     USB

Microphone
Uni-directional
Sensitivity    -42-+2dB
distortion    <2%