COOLWHEEL is a small, fashion and portable self-balance electric unicycle. It is the newest high technical travelling device produced by Shenzhen Coolwheel Technology limited. Different from traditional transports, it is balanced by a built-in gyro-sensors. Users can operate it by shift their body weight forward and backward to move forward, acceleration, deceleration and stop. As a new travelling device, COOLWHEELis small enough and portable, you can bring it into offices, classrooms, shopping and anywhere you want to go, as there is no gas release and no environment pollution, it makes your green travelling dreams become true.