24000mAh ultra high external battery pack, compatible with more than 99% electronics, providing almost 5 days power for your mobile devices, can charge iPhone 7 more than 7 times, charge Samsung S7 more than 4 times, charge iPad mini 3 times, specifically designed for businessmen and travelers. Smart charging, simultaneously charge iPhone, iPad and Samsung is available, input 5V/2A, 3 output total 5.5A (5V/2.4A, 5V/2.1A, 5V/1A), charge your devices with fastest speed. USING AAA+ GRADE BUILT-IN lithium battery cell and PCB, life cycle more than 500 times, multiple smart protection system which can effectively protect the device from over-charging, over-discharging, over-current, short-circuit etc. Digital display screen can show power percent accurately, arch and smooth surface design, ABS+PC environmental protection material, strong LED light, excellent touching and visual feeling. PROVIDING 18 MONTHS LIMITED product warranty and life-long friendly customer service since you purchase it, solve your problem within 24 hours after receiving your email.