Stereo Bluetooth headset

Technical specifications:
Megaphone diameter: 40 millimeters
Frequency range: 20-20.000Hz
Sensitivity: 105dB 3dB
Distortion: 2% THD
Magnetic dimensions: F15.5x2.0 millimeters
Impedenza: 32 Ohm 15%
Input power: 30mW (max)
Microphone Sensitivity:-58dB 3dB