*Earphone endurance data: When the earphones are fully charged, and the volume is turned to 50% (smartphone), they can be used for up to 5 hours. When the earphones and charging case are fully charged, music can be played continuously for about 20 hours. Specific usable times may vary depending on the conditions of usage.
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Each earphone is equipped with two built-in high-sensitivity microphones, which use beamforming technology to eliminate the background noise during calls, allowing the other user to hear you clearly, even in noisy environments.
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"*The first connection needs to be completed manually in your smartphone's Bluetooth settings. The device's Bluetooth function should be turned on as normal in order to establish an automatic connection.