Fit Charge Technology: Save time and energy. Fit charge automatically identifies your device to provide the safest charge rate and deliver the fastest possible charging speed for your device. Extremely Compact: With One of thinnest and lightest power banks, always stay charged (5.47in*2.84in*0.63in, 6.84oz). Charges iPhone 7 three and a half times and Samsung Galaxy S7 three times. Dual USB Output Ports: Charge 2 devices at the same time with the max current. Built-in Safeguard: Protects your devices against overcharging, overheating, short circuit and excessive current. Package Contents: Romoss 10000mAh Ultra Compact Portable Charger, 1ft Micro-USB Cable, User Manual, 18-month Warranty.