COB key light backpack light lamp neck whistles light small flashlight, ABS material COB light bulb, the light has three gear light weak light flash, install a AAA7 batteries durable, red, black, blue, green color with 4 color combination, packaging shown with the box of a box of 24 also has a separate 480 PCS per color box packaging, with key chain also with hang rope are free to choose, also can be used when the whistle, it is an aesthetically pleasing fully functional keys lamp, welcome new and old customers to choose!