Connect your 3.5 mm headphones, speakers, or aux cable to enjoy music or talk hands free, while you charge. Use the 3.5mm RockStar at home, at work, in the car, or on the go. Listen to 3.5 mm audio and charge at the same time Supports optimal pass-through charging for iPhone Supports remote control and microphone from MFi-certified 3.5 mm headphones Supports syncing via Lightning to USB cable Works with Apple iPhone 7 Smart Battery Case Made for iPhone Research: Develop a dependable solution for customers looking to use the Lightning connector on the iPhone 7 Plus or iPhone 7 to charge their new device, while simultaneously listening to music using 3.5 mm headphones or speakers. Consumer requirement: A way to charge the iPhone while listening to audio. A solution that is light, compact, and portable.