Extremely lightweight magnesium alloy frame, weighing only 15.4 kg. Quick-release lithium battery complies with UN38.3 and MSDS aviation standards, and is approved for air travel. Travels approximately 15-18 km on a full charge. An additional battery can be purchased for +$2000 to extend the range to approximately 30-36 km. The battery is located on the side of the frame, so it does not need to be removed when folding the wheelchair, making it convenient for navigating narrow spaces and storing in a car trunk. Two charging methods: via the controller or directly on the battery. LCD intelligent brushless controller with a separate control box for smooth and precise operation. The controller is equipped with a front-facing light. Brushless motors require no carbon brushes, making them more energy-efficient, lightweight, and durable. The backrest can be folded down for space-saving storage. Flip-up armrests allow the user to easily transfer from the sides to a bed or another chair, eliminating the need to exit from the front. Detachable footrests with footplates that can be folded up, convenient for the user to get on and off. Adjustable footplate height. Equipped with a central quick-release calf strap and heel loops. Ultra-comfortable ergonomic seat cushion. Equipped with a screw-mounted safety belt. Solid, treaded tires. Equipped with anti-tippers for safety on inclines.