portable power bank so easy for carrying, suitable for PC,iphone, ... lithium batteries, long lifespan, and more safety.4.Auto power off, make better use of battery energy.5. unique ... mini measurement , make it protable that can charge the mobile device anywhere and anytime.8. Prevent wear design,more anti ... Apple,SumsungM300,SumsungD800,LG KG90)4,Packing 1pc 4400mA portable power bank for iphone and ipad