A Segway is a two-wheeled, self-balancing personal transportation device. It uses gyroscopic sensors and tilt sensors to maintain balance, allowing the rider to control it by leaning forward or backward. Segways are often used for short-distance travel in urban areas, parks, and tourist attractions. Introduced in 2001, the Segway was designed to provide an eco-friendly alternative to cars and other vehicles. It can reach speeds of up to 12.5 miles per hour and has a range of about 24 miles on a single charge. Segways have become popular for guided tours and are sometimes used by security personnel.