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Bluetooth version: V5.4.
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Audio decoding: AAC, SBC.
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Supported protocols: HFP, A2DP, AVRCP.
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Working frequency: 2402MHz-2480MHz.
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Frequency response range: 20Hz-20KHz.
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Earphone battery capacity: 35mAh.
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Case battery capacity: 500mAh.
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Speaker: φ10mm.
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Music time (ANC off): approximately 7 hours at 70% volume.
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Music time (ANC on): approximately 5 hours at 70% volume.
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Calling time: approximately 5 hours at 70% volume.
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Standby time (connected): about 48 hours.
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Earphone power input: 5V⎓200mA.
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Charging port: Type-C.
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Cycle counts: about 5 times.
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Earphone charging time: about 0.5 hours.
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Case charging time: about 1.5 hours.
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Waterproof: IP54.