Mecasy_Skyblue 3D Removable Lego Brick Block Silicone Rubber Case Cover for iPhone 5,USA Seller Built-in short circuit and over-charge protection. Safety First! 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. Check the power status at a glance with an integrated 4-light LED status indicator. Know before you go! The image printed using crystal clear enamel coating for long lasting effect.