The Onyxx Power Bank is all about convenience and functionality. It’s compatible with Qi wireless chargeable phones. To charge your device, just place it on top of the power bank. You can also charge your phone using the USB ports if you want, but that’s not as cool. The power bank stores 5000 mAh of charge and can charge up to two phones at once. The Onyxx power bank is great for indoors or outdoors since it is dust and water splash resistant, so take it with you everywhere and always be charged up.