Quality product, good price (400e) Innovative way to increase speed (accelerator) pedal in the floor instead of the handlebars - safer scooter guidance. Ideal for a woman or a more confident man. KERS (Kinetic Energy Recovery System) is an innovative kinetic energy recovery system. This system makes it possible to capture and store the energy generated during braking and when driving freely. The scooter uses this energy on the next ride, which saves battery and you can travel a greater distance on a single charge. Definitely a good buy. At a maximum speed of 30 km / h, a 30 km range for a 90 kg person, fully charged in 4.5 hours. Android application. He drives at peak times, sales, I have absolutely no time to use it, because I have 3 minutes to work. walk. I used it 3 times, driving around Bratislava.