Excellent sound quality Long range Extended talk time Dual connectivity Undisturbed calls thanks to Busylight on the headset.Frequency response (microphone) 150Hz - 11kHz (super broadband ) 150 Hz - 7.0 kHz (broadband) 150 Hz - 11.5 kHz (super broadband) frequency response (headphones) 150 Hz - 6.8 kHz (standard broadband and high density broadband) 300 Hz - 3.5 kHz (narrowband) 20 Hz - 12 kHz (ultra broadband - music mode). Charging 0 - 50%: 30 minutes 0-100%: 1.
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