B12 Bluetooth wireless folding headset

Plug diameter: 3.5mm
Plug type: Bluetooth
Sounding principle: moving coil
Frequency response range: 20-20000 (Hz)
Impedance: 32 (Ω)
Sensitivity: 108 (dB)
Distortion rate: 1 (%)
Wire length: 1 (m)
Horn diameter: 40 (Φmm)
Headphone wire material: braided wire