Ninebot A1-Upgradable is a smart, single-wheeled, self-balancing, electric mover that covers short distances. Ride the compact Ninebot A1 by moving your body's center of gravity to control the vehicle's forward and backward motions. LED lights display the charge status. There's room to upgrade the battery to increase speed and mileage. Ninebot A1 can be connected to a mobile device app that offers features such as gauging the condition of the product and finding other Ninebot users. Ninebot A1 is compatible with a variety of accessories, such as a parking bracket, which are sold separately.Designed by: Xiao ying Liu and Lei Liu of Ninebot, Inc.Contact: Xiao y. Liu