iWALK Credit Card Sized Power Bank 5000mAh, Cell Phone Portable Battery Charger, Metallic Shell,0.39inch Thickness Ultra Slim Battery Pack, Gold One of the thinnest 5000mah power bank on the market, Only 4.9*2.7*0.39inch and 5.3oz weight, extremely tiny and light. Input 5V/1A for recharging, 1x Reversible USB ports that output support 5V/2.0A Rechargeable Li-Polymer battery cell, Could charge iphone6S 1.1 times, or Galaxy S6 1.3 times High end and ultra-thin aluminum case, LED power indicator, Simple,concise,and lightweight design Multi-Protect safety system ensures complete protection for you and your devices