Hello, the BeatsX earphones come with Lightning port, which can be charged through the Lightning cable, but it cannot be charged by Apple fast charger, because the BeatsX earphones do not support fast charge. If you use a fast charger to charge it, the charge will exceed its maximum allowed, which may cause damage to the battery. It is recommended to use the original wiring or 5V\/1A-2A charger to charge.
Answer: Yes, BeatsX can use Apple Fast Charge, just use the original Lightning to USB-C wired charger. Using fast charge can quickly fill the battery in a short time.
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It can be used. It is recommended to plug your headphones into a power source using the included Lightning cable. The headphones can play for up to 8 hours when fully charged, and up to 2 hours when charged for 5 minutes. When the headset is turned on and set, the LED indicator on the power button shows the remaining listening time.
Do not use Apple fast charge, it will damage the battery