300000mah huge capacity: Can fully charge iPhone7 Plus 6 times, Galaxy S8 4 times, iPad Pro 1.5 times,with most phones you will get 5-10 full charges of your phone with this power bank. Four Output Ports: All output port is 5V/2.1A , you can charge 4 devices at the same time, the device's charging capacity is powerful, you can also share with your friends. LED display and lights: 300000mah power bank with LED display, you can display the remaining power, so you clearly know when to charge the power bank. Side there is a LED light, in the dark to give you light. Nine security protection modes: to prevent excessive charging, excessive discharge, the voltage is too high, the current is too large, too much power, high temperature, circuit short circuit, reverse charge, battery instability. Specifications: Number of USB interface: Four USB Port Battery Type: Li-battery Size: 166 (L) × 80(W) × 22 (H) mm Input voltage: 5V DC Output voltage: 5V DC Input Current: 2.1 (max) Output Current: Port1 5V/2.1A, Port2 5V/2.1A, Port3 5V/2.1A, Port4 5V/2.1A Size:16.6 X 8.3 X 2.1cm/6.54 X 3.27 X 0.83inch