Meet the WonderCube: a handy multitool that lets you charge, hold, sync your phone. It also can expand your phone’s memory. This durable tool lets you charge your phone with a 9V battery when you don’t have access to a regular charger. It is also a USB OTG flash drive. It has a built-in cable and also serves as a stand for your phone.
The WonderCube sits on your keychain and does not weigh a whole lot. It even has a LED mini torch. You can find this cool gadget on Indiegogo.