Functional & Unique Capsule Design: Perfect solution for charging your Apple iPhone and listening to music at the same time using the dual lightning splitter. Excellent compatibility: Designed for iPhone the X, for iPhone 8/8 Plus, 7/7 Plus, and any lightning device. Excellent sound performance: Supports up to 48 KHz and 24-bit audio output, keep original apple lightning earphones sound quality. Plug and Play: It’s very easy to use just by plug and play, just insert your charger or earphones into the correct port and then it plays. No App needed, no additional software needed.