Helix/Retrak TurboVolt+ Power Bank 20000 mAh with USB-A and USB-C Ports BlackKeep your devices charged up, even when you're nowhere near a wall outlet with the Helix TurboV+ 20,000mAh power bank. Boasting an ultra slim design, it slips easily into a bag for maximum portability. It features dual USB outputs and delivers six full charges to most smartphones. The LED indicator light lets you see at a glance if your device is charging. 20,000mAh capacity provides six full charges to most smartphones Dual USB outputs make it easy