Viotek Emergency Car Battery Charger with Jumper Cables and Tire Inflator &ndash; USB Charging Port and Hard Shell JUMP START YOUR CAR  Portable Jump starter rated at 400 AMP peak currents allow you to jump start your car up to 10 times CHARGE YOUR DEVICES  Use the USB Port on the portable car battery charger to charge your phones and other devices PUMPS UP TIRES  A portable air compressor serves as a tire pump to help inflate flat tires up to 87 psi SURGE PROTECTION  Built in safety features for the car jump starter help protect from surging and short circuiting LED FLASHLIGHT- An LED flashlight allows you to have visibility and night, and can be set to both strobe and SOS mode