EL wire is ligth soruce Call-in reminder by quickly flash,good for disco,party,holiday, Christmas,Halloween and Easter 3.2mm"Polar ... "EL wire is light sourceColor:Pink/Orange/Blue/Lime greenFunction:Flash and telephone call reminder by quickly flashPower:CR2032 Batteryx1pcs(=3VDC ... , Holiday,Christmas, Halloween,KTV, amusement and so on. EL (wire) Flash Bracelet