About this item Compatible with for Beats Solo 3 Studio 2 3 Powerbeats 2 3 Wireless Headphones, Pill 2.0 Wireless Bluetooth Speaker More, etc. USB to micro jack - Suitable for all Beats by Dr Dre series, micro jack products. PLEASE NOT: Note: Only compatible with the "micro" headset and speaker charging jack. Built-in safe and quick charging chip protects the battery loss and aging of the headset. Made with new technology, aluminum alloy shell, PVC flame retardant material. FEIYIU focuses on better products to give customers the best experience. We provide 3 years of replacement service, if you have any questions, please feel free to contact us. Our service team will reply you with a satisfactory solution.