Boostcase Pro for iPhone 6s Plus and 6 Plus - Gold - 4500 mAh - 100% More Battery Life - BCH4500IP6P-GLD Made for iPhone 6s Plus and 6 Plus Rechargeable 4500mAh battery sleeve adds over 100% recharge for iPhone 6/6s Plus and easily attaches/detaches from the snap case using a patented locking system Toggle-switch to turn your battery on and off LED light bar shows remaining battery level by increments Simultaneously charge & sync your iPhone and Boostcase