UL2272 Certified of hoverboard and MSDS/UN38.3 and UL2271 safety of battery 💪 High-temperature resistance and fire retardance 🔥 The new music stereo speaker & RGB led light design 🌈 Cruising speed of 12 km/h with long distance for riders up to 220lbs (100kg) 🚀 Up to 10km per charge 🔋 17.6lbs (8kg) easy to carry with to everywhere 👌