LeexGroup&reg; Glitter Pisces Constellation Sense Flash Light LED LCD Color Changed Shell Case Cover For Apple iphone 4 4S 4G ---Flash while calling or called,made of plastic, very lightweight; ---12 Constellations (Our default is Pisces, if you want others,pls feel free to contact us,thank you!); ---Assembly of Battery: 1.Push the battery to the right to see the LED on, the light will go off after several flashes . 2.Attach the case to iPhone; ---Packet Content: 1 x Flash Light Constellation Case for iphone 4/4S; 1 x CR2016 button battery; ---Our products are all from factory direct supply, we can guarantee 100% inspection before shipping. If any problems of our products really exist, an exchange or a refund is available.