Ideal for travel, this is the device that powers a laptop for 15 hours, a tablet for 21 hours, or a smartphone for 100 hours. About the size of an iPad mini, it comfortably fits in a briefcase, backpack, or carry on and powers multiple devices on the go via a USB port, USB-C port, and AC plug. Its 2.4-amp USB port employs Quick Charge technology that recharges a completely drained smartphone battery to 60% in only 30 minutes while its USB-C port rapidly recharges laptops and other compatible devices. When employing pass-through charging, it recharges connected devices first, then the internal 22,000 mAh battery. Recharges via USB-C with included adapter. 7 1/2" L x 4 1/2" W x 1" D. (1 3/4 lbs.)