The ultimate way to show off your team pride and dedication. Powerdecal is an LED backlit logo for your vehicle window. The device turns on automatically while driving at night via sensor technology and the device shuts off after 2 minutes once parked. Easy installation with quality 3M adhesion material- just peel and stick- no tools required. ****How To Use:*** Move switch to On position and remove try me strip by pulling firmly down.*** Peel off protective tape to expose adhesive on window clips. For best results apply to clean and warm window.*** Press firmly against window for 20 seconds. Device will turn on automatically at night while driving and shutoff after 2 minutes once parked.****Features:*** Authentic Team Colors And Logo*** Motion Sensor Technology*** No Assembly Required*** Requires 3 *AA* Batteries (Included)*** LED Lighting****Dimensions:*** Powerdecal - 4 1/2* Diameter****