Double Switch for Light. The auto switch and the manual switch. The auto switch for the motion sensor. it is disigned for saving your power, when you are biking, it will be lighting. And if you stop the biking, it will be turn off agter 50 seconds. The manual switch, it can turn off when you are riding at in the daytime. The more switch, the more saving power.
32 kinds of different pictures. 32 pcs colorful bright LED to form the pretty pictures when it is cycling. Each 16 pcs light a side, to show the picture two side for looking. And it will change the next picture per 4 seconds. The richer picture, the more change.
Speed Requirement and IP55 Waterproof. The faster your biking, the more complete the pictruer is. And we show the difference effect from difference speed as the picture 7. And it is life waterproof, it can be used in the raining or other weather, but please don't drop it into the water. The faster speed, the more complete the picture.
Easy to install. Please install it according to the instructions, and remember to tighten two plastic screws. and please note this produce need 3 AAA battery [NO BATTERY INCLUDE].
Gife and Guarantee. Gift for you, the whistle, when you care meeting people on the road, you can use it, let them aviod your bike. And we promise to give our products 6 months' professional protection. If you have any questions, please contact us. We will give you a refund or replacement.