Biosong
Bluetooth
Bluetooth version: V5.4
Transmission distance: 10 meters
Battery capacity: 500 mAh
Battery life: about 24 hours
earphone
Diaphragm material: biological diaphragm
Driver unit: 11mm
Frequency response: 20 Hz-20 kHz
Sensitivity: 100 dB
Impedance: 32 ohms
microphone
Directivity: omnidirectional
Frequency response: 100 Hz-10 kHz
Sensitivity: -42 dB
Charging Cable
0.3m usb-C charging cable