OUTAD Waterproof 32-LED Bicycle Bike Spoke Rim Lights for MTB Wheel Tire VARIOUS PATTERNS: The product consists of 32pcs colorful LED lights. It can flash 32 different kinds of patterns, each pattern will be changed every 4 seconds. CLEAR AND COMPLETE PATTERNS: Pattern is clear and complete when speed up to 12.4 miles/hour. 2 OPERATION MODE: In automatic mode the lights only turn on when it is dark out and your wheels are turning; in manual mode, the lights stay on full time. 3 AAA batteries are needed to operate the product. WATERPROOF: Feel free to use on rainy days; the light is fully waterproof. WHAT YOU GET: OUTAD Bike Spoke Light(3 AAA batteries are not included), our guaranteed 12-month warranty (quality problems under normal use) from the date of purchase and friendly customer service.