Dark Blue Eyed Black Alien Black Plastic Case for Apple iPhone 4 or iPhone 4s Integrated power switch allows you to switch on/off the battery case. Only use the battery when you need it. We can provide custom phone cases with any design for you. If you want, please contact us! Nice and bright picture,High quality Shock absorbable and anti-bump for ultra protection. Made from durable high quality plastic, provides maximum protection for you iPhone