Celebrate 250 250Hpbt546R Boom Max Pro Sound Bluetooth On-Ear Headphones With Mi

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40-mm drivers ;
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Frequency response: 20 Hz to 20 kHz;
dynamic sound playback;
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Sensitivity: 110 dB +/-3 dB;
32-ohm impedance;
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Bluetooth(R) v5.3 for wireless streaming up to 32.8 ft.;
connects automatically to previously paired devices;
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Adjustable headband, comfort padding hands-free mic;
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SD(TM) Card and aux inputs;
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180-mAh battery with up to 6 hours of play time;
charging time about 2 hours;
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Includes USB-C(R) charging cable and manual;