1. The FreeGo personal transporter is a sophisticated piece of equipment that is much more complex Than may first meet the eye. It takes a lot of technology and advanced engineering to make the FreeGo operate as it does on 2 wheels. It becomes more apparent at how truly remarkable this Machine is when you understand a little more of how it works. 2. Working principle Based on the basic principle of "motion stability", that is to say, vehicle's automatic balance ability, FreeGo Can judge the position, status of vehicle by its built-in precise solid-state gyroscope and then drive its motors To balance the vehicle after receiving the commands from high-speed CPU inside. 3. Driving ability With 2 strong motors, 500W per motor (2 motors can be 1000W), FreeGo 2 wheel scooter can move at the Speed up to 18 KM/H. Through a smart transmission, the FreeGo drives 2 PCS of 16-inch high strength Vacuum tires which makes it moves stable and comfortable no matter it is indoor or outdoor 4. The source of power The power source of FreeGo comes from the 2 rechargeable powerful batteries (12V@12AH) which can Work for 1.5 hours and moves 20--35 km for one time fully charge. 5. Specification Color: Black. Customized colors are accepted when you order more than 50PCS Auto electricity off when fall down Emergency protection when lose control Hand can be adjusted according to your height Battery status display Speed: 18KM/h (max). You can speed up by moving your body's center of gravity Max load: 100kg Drive 12-20km when one time fully charged Vehicle weight (Net weight): 45kg Vehicle size: 70cm long, 40cm wide, 40cm high Vehicle body is 15 cm (from ground) Pedal height: 27cm Range per Power: 15--20km Wheel: 16" ABS Wheels Charging Voltage: 24V Power Supply: 2 x 12V 12AH PB Batteries Motor: Two 500 Watt DC-Gearbox motors Battery Charger: 110V-240V Package Size: 75cm x 48cm x 48cm (plywood box) 6. Packing list 2 x Motors 500W DC 2 x 12V @ 12AH Rechargeable battery 2 x 16 inch strong wheel 30A bridge PWM motor controller 110-220V Power Adapter (charger). 2 x Motors 500W DC 2 x 12V @ 12AH Rechargeable battery 2 x 16 inch strong wheel 30A bridge PWM motor controller 110-220V Power Adapter (charger) Package Size: 75cm x 48cm x 48cm (plywood box) Weight:48KG