*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.
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.
"*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.