HAMA Bluetooth headset "My Voice Advanced", black

Bluetooth version: 5.3
Frequency band: 2402-2480MHz
Frequency range (headphones): 20 Hz - 20 kHz Ω
Frequency range (microphone): 100 Hz - 8 kHz kΩ
Impedance (headset): 16 Ω
Impedance (microphone): 0.4 Ω
Technology: MultiPoint
Transmission distance: 10 m
Directionality (Microphone): Omnidirectional
Max. Working hours:
Music: 8 p.m
Standby: 250 hrs
Talk time: 14 hours
Built-in microphone
Sensitivity (Headphones): 118 dB
Sensitivity (microphone): -44 dB +/- 3 dB
Charging: USB-C
Charging time: 2 hours