If you have sound, Bluetooth, or charging issues with your earphones, you might want to reset them.
Reset your Beats on-ear or over-ear headphones - Apple Support
Charge your Beats Studio Buds and your Beats Studio Buds + - Apple Support
Official Apple Support
Beats Fit Pro - Noise Cancelling Wireless Earbuds - Beats
Restored Resored Beats by Dr. Dre Powerbeats Pro Bluetooth True Wireless Earbuds with Charging Case, Navy Blue, MY592LL/A (Refurbished)
Find the serial number of your AirPods - Apple Support
Use the Beats app for Android to turn the Pill+ audio cues on or off - Apple Support (HK)
Beats Support - Beats by Dre
Beats Repair & Service - Apple Support