ULSAFETY:UL 2272 Certified self-balancing scooter pass all UL safety test and bring you a peace of mind on voervoltage,temperature increases,overcharging of battery,overcurrent and short circuit protection;Scratch-resistant and fire retardant shell casing with Graffiti finish also for your utmost safety.The UL sticker and warning label will be on the bottom of each VEEKO hoverboard product. FEATURES: Two 6.5'' aluminum rubber tire wheels with 350W dual motor/700W in total,built-in lithium-ion battery pack (20pcs 36V/4Ah cells) which guarantee speed and long playing time (around 4-6 hours); Max around 44-225 lbs of weight,top speed of about 9.6 mph,and generally have a range of about 6-9 miles; Two groups LED lights as signals when you start/stop or turning,two LED dicators help to monitor battery volume and board health status;Non-slip foot pedals for more comfortable riding ADVANTAGE: Professional gyroscope and acceleration sensor ,servo-control system ensure the balance and offer you the smoothest ride on hoverboard; Strong power motors and top quality battery pack make sure stable riding performance and bring you a good experience. You can travel freely around the city without being bound to the schedule of trains and metrors, or just for leisure fun.