Ultra-lightweight all-carbon fiber frame, weighing only 13kg, easy to carry. Battery complies with IATA and UN38.3 aviation regulations, can be taken on board flights. Uses a lithium battery, which allows for a travel range of 13km when fully charged. Smart brushless controller for smooth operation. Removable seat cushion and back cushion made of thick fabric, highly durable, supportive, breathable, and easy to clean and replace. Backrest can be folded backward to save space. Armrests can be flipped back, allowing users to get in and out easily without leaning forward, making it simple to pass through beds and chairs from either side. Removable seat cushion and back cushion made of thick fabric, highly durable, supportive, breathable, and easy to clean and replace. Backrest can be folded backward to save space. Armrests can be flipped back, allowing users to get in and out easily without leaning forward, making it simple to pass through beds and chairs from either side.