... logo caps, lighting logo caps,flashing hats,fiber optic hats, sandwich lighting caps, flashing logo hats,lighting logo hats,fiber optic baseball caps. sandwich ... your logo.(white, red, blue,green,orange,purple,yellow and so on)Switch positionIt has two switchs.One convenient switch ... cases typeBattery case is including two CR2032 coin cell batteries and can keep continue working about 48-72 hours.Cap ...