niceEshop(TM) Orange Circle Semi Transparent Flexible TPU Case fit for iPhone 5 5S +Screen Protector Use rechargeable lithium polymer battery. Durable and shock absorbing for maximum protection Slim, snap on, tight fit We can provide custom phone cases with any design for you. If you want, please contact us! Integrated power switch allows you to switch on/off the battery case. Only use the battery when you need it.