Stylish, compact, convenient to carry. New high-quality lithium batteries, charge and discharge safety is guaranteed. Fully optimized charge and discharge efficiency, power conversion rate of over 91%. Intelligent IC circuit management, stable output current, fast charging does not hurt the machine. Dual USB output interface, can charge two devices at the same time. Fully compatible with Apple, Samsung, XiaoMi, HTC or Blackberry and other mobile phones and tablet PCs but also for some digital cameras and handheld games charged.