... led light color:red,yellow,blue,green,white,orange and so on .5.cell button:CR927,or LR926* ... pp bag,opp bag,EVA board,card,gift box and so on .8.usage:the flashing badge can ... be dazzling in the dark.the unique design and wonderful flashing effect can do a good favor to ... to promote your company and product.what's more ,they can also be used in parties,and sport events,and concerts and souvenirs.