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Bluetooth version: V5.3.
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Chip: Jieli AD7003D.
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Noise cancellation: approximately 35dB±2dB (about 22-23dB).
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Audio decoding: AAC, SBC.
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Supported protocols: HSP, HFP, A2DP, AVRCP.
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Working frequency: 2402-2480KHz.
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Speaker impedance: 32Ω.
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Rated power: 2*2mW.
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Speaker: Φ13mm.
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Music time: 6h (ANC Off); 5h (ANC On).
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Calling time: about 4h (60% volume).
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Earbud standby time (connected): about 48h.
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Earbud charging input: 5V⎓30mA.
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Charging input port: Type-C.
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Cycle counts: about 3 times.
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Earbud charging time: about 1.5h.
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Case charging time: about 1.5h.
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Water resistance: IPX4.