Extreme Lightweight Ultra Slim Iphone 6 Plus Charger Case , Iphone 6s Plus Battery Case , External Backup Power Battery Case Cover for Iphone Plus Super Touch Feel 3700mAh (For Iphone Plus) AQL 0.1 100% Checked! COMPACT DESIGN POWERFUL BATTERY--Coolmate Lightweight Ultra Slim Iphone 6 Charger Case/Iphone 6S Charger Case Ultilizes 3700mAh Lithium Polymer Battery,Case Provides up to 90% Extra Battery Life With a Thickness of only 0.18 inch PERFECT FITTED BUTTON & INDICATORS-- Click the Switch Button to Check the Battery Level , each LED Indicates 20% of the Battery. Press the Switch Button for more than 2 Seconds until the Power Light on to turn on,the Same Way to Turn off the battery case CONVENIENT CHARGE & SYNC-- Charge your iPhone and battery case with Apple Lightening cable simutaneously. No Meed to Organize and Carry Multiple Cables Anymore,ALSO allow to Sync iPhone without Removing the Battery case EASY ASSEMBLY & DISASSEMBLY-- The Battery Case Provides an Easy Installation Way,just Sliding the iPhone into it.And just Oppo-Slide to Disassembling EASY TO USE AND PERFECT TOUCHING FEEL--When Your iPhone's Battery is Low , just Press Power button on the Case for 2 seconds to Charge your iPhone.The Case Surface is Finished with Silicone Rubber Paint,It Gives Outstanding Touch Feel.