No Direct Connetct Headphones: Due to Apple's new phone design 3.5mm and lighting connected audio is not compatible. Wireless bluetooth or Apple Airpod headphones only.
LARGE CAPACITY: 5500 mAh Li-polymer rechargeable battery, can be full charged 2.5 times for iPhone X . It is used A class polymer battery, you can do safe charge at anytime and anywhere.
FAST CHARGE: Full end five protection technology,reduce voltage conversion, which is safe and can reduce phone fever while charging.
SMART CHARGE: Charge and discharge at same time . Press the button to charge for phone first, and after full charge, it will be smarted changed to charge for backup battery. it will be automatic power down after power saturation . Other phone can be charged via external USB port.
PRACTICAL DESIGN: Its shell used Piano paint process or scrub treatment,high-end and very nice hand feeling. The holder function is a very special sweet design, it allows us watch film and charge at same time !