Feather-light: Full carbon fiber frame, weighing only 14.5 kg (excluding battery), easy for transportation, folding, and storage. Extra-large capacity 20 AH lithium battery, capable of traveling 20 km on a single battery; can be paired with an additional 20 AH battery for extended range up to 40 km. British PG VR2 BLDC brushless controller and control box. Extra-large 8" and 12" front and rear wheels with shock absorption design: each front wheel equipped with two sets of shock-absorbing springs, rear wheels with shock-absorbing vented tires. Detachable Contour comfortable contoured cushion. Carbon fiber rear wheel frame, further reducing overall weight of the chair. Equipped with rear lights for safer nighttime navigation. Comes with original detachable cup holder bag. Original buckle-style safety belt. Easy folding: One-click folding system makes folding the chair quick and easy, perfect for travel and storage. Optional lithium battery (10 AH) suitable for air travel, ensuring a worry-free adventure on your next journey.