Uunique Supra Power Bank holds plenty of juice, making this the definition of High Capacity Power in the Uunique lineup. 20,000 mAh capacity sends power where you need it most to charge any device with Uunique Three-Way Simultaneous Charging: Wireless Qi, Dual USB-A ports, USB C and Micro USB Input Ports. There’s enough power here to charge a tablet, a smartphone and headphones all at the same time.