The tiny but mighty device is designed to carry enough power to charge multiple devices in a matter of minutes.

Your keychain can carry a lot more than keys and decorations. These five tiny gadgets are all under $25 and genuinely worth the extra weight.

We may receive a commission on purchases made from links. You may have noticed we have an affinity for nifty little USB gadgets. We'll not only keep old USB gadgets if we think they're still useful, ...