Safety: Built-in High Quality Li-Poly Battery Cells, Which Has Passed The Following Certifications: CE, FCC and RoHS. The Multi-Protect System Can Keep Both You And the Battery Safe. Our Worry-Free 12-Month Warranty and Friendly Customer Service. Fast Charging Portable Charger:This Power Bank Can Save Your Charging Time From 8 Hours To Less One Hour (Exact Time Vary) Compatibility and Capacity: It is Compatible With Most of The Smart Phones and 5V Tablet in The Market With The 6000mAh Capacity. Ultra Compact: Credit Card Power Bank,Handheld Size Design Makes it Exquisite and Portable, Which Can Be Very Easy To Put Into Anywhere You Want Such As a Bag or Even a Pocket. Intelligent Detection: There is No Switch Button, and You Can Turn it on By Shaking when it's Connected to other devices. The built-in LED indicators will show you the Remaining Power Capacity and Prompt you to Charge the Power Bank in Time.