Here is a mobile charger that also works as a stun gun and flashlight, allowing you to defend yourself when in trouble. The Safety Technology USB Charger Stun Gun Flashlight has an aircraft-quality aluminum exterior, so you can use it as a baton. It delivers 18mv jolts and has a blinding strobe light to disorient attackers.
You can use this charger to recharge your smartphone, tablet, and other portable devices. It has a rechargeable battery inside.[where to get it]