Hoverboards balance

100% Safe. Our "Monster Bluetooth Hoverboard" models are assembled with only Certified and Tested Lithium Batteries. Our Bluetooth Hoverboards have speakers built into them. This allows you to play your own music, wirelessly, from your cell phone directly on your Hoverboard. Jam out to your favorite tunes while you ride! It's fun, it's practical, and it's cool. Simply stand on your board and it will magically balance for you. Our dual-action motors respond to your body movement. Shift your weight forward and accelerates forward. Shift to the left or right to turn, or shift back to reverse. Just hop on, relax, and let our boards do the work for you! You will be cruising along after just a few minutes of getting to know your hoverboard. Our 10" 8" 6.5" Wheel Bluetooth Monster Hoverboard Maximum Speed: 12KMH Max Distance on One Charge: 20 KM Battery Charge Life: Up to 5 Hours Estimated Charge Time: 1-2 Hours Frame Material: ABS + PC Plastic Wheel Size: 10" 8" 6.5 Wheel Material: Rubber Maximum Weight Capacity: 285 Battery: Certified Lithium Battery Assembly Details: no assembly required