Features: 1) Flashes 7 colors 2) Activates when car is in motion, at night 3) 2 x AAA batteries, no external power sources are required 4) Sensitivity to light and shock (auto shut off) 5) May be used as a flashlightInner packing: 2pcs/1setOuter packing: 48sets/ctn Carton dimensions: 45 x 45 x 20cm