*NEW* COOL!!! DIAMOND SENSE FLASH LIGHT UP CASE iPhone 4/4S!!!!!!!!!! 100% brand new and high quality! Protects iPhone on sides and back from scratches and dents; Cool and fantastic LED changed light make your iphone4 4s different from others; CR2016 batteries is included! And can be replaced when used up; Note:It is very normal for the case to falsh when no calling or answering , no sending or receiving message ,maybe it sensed other signals,so pls take easy to it .