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Headphones Frequency Response:20Hz - 20 kHz
Headphones Impedance: 32 Ohms @ 1kHz
MicrophoneType: Omni-directional
Microphone Impedance: 2.2k Ohms
Microphone Sensitivity: -40 dB (± 3 dB)
Bluetooth radio version :Bluetooth 5.3
Bluetooth profiles: A2DP, HFP, HSP