SAFE & STABLE: Certificated with UL 2272, this self-balancing electric scooter meets high standards for fire and electrical safety. Smart BMS and self-balancing technology ensures stable operation and battery performance. LIGHTWEIGHT & POWERFUL: Hiboy self-ba lancing electric scooter J5 is compact and lightweight, weighing only 25 Ibs with a max load of 220 Ibs. Equipped with dual 350W motors, J5 can easily reach a max speed of 10mph. EASY TO LEARN: Beginners are advised to set a minimum speed of 5mph. Excellent self-balancing techniques make most people easily master this scooter. Knee control bar for precise steering let your hands free. FUN FOR LIFE: Download Hiboy-J5 APP for speed adjustment, mile record, light control, vehicle self-diagnose, and more. J5 Self-balancing scooter makes it more fun for kids and adults. WARMING NOTES: Please follow the front and back steering directions in the picture while riding. Please peel off the transparent film of the foot mat at first when you start to ride. Please inflate the tire to 30psi before your first riding. Inflate both tires equally.