Rikki Knight&trade; Letter M Initial Rustic Fall Leaves on Wood Design iPhone 6 Case Cover (Black Rubber with front bumper protection) for Apple iPhone 6 and 6s Integrated power switch allows you to switch on/off the battery case. Only use the battery when you need it. Use rechargeable lithium polymer battery. Easy Access to all device ports and controls We can provide custom phone cases with any design for you. If you want, please contact us! Built-in short circuit and over-charge protection. Safety First!