Specification: Controller: PG Motor: 150W*2 Battery: Lead-acidú¿24V12AHx1ú¬ Incline capability: í_12íp Per Charge Range: Up to 20km Forward speed: 1-8km/h(adjustable) Backward speed: 2-6km/h(adjustable) Turning radius(min): 360íp Recharge time: 6h/pc Weight capacity: 120kg/264lbs Rear wheel size: 61CM/24í¦ Front wheel size: 20 CM Width: 72CM /28í¦ Seat Width: 46/50CM 18í¦/20í¦ Seat Height: 48CM /19í¦ Height: 93CM /37í¦ Brake: electromagnetic. Material: 1.High intensity aluminum alloy frame (grey) 2. Seat Material: waterproof, tensile and Permeability nylon cloth. Performance: 1.Armrest could be up and down 2. Footrest and armrest is disassembled for easy-to-use 3. Can be operated both by power and manual 4. Multi-function of brainpower controlling and rear-wheel drive 5. Collapsible for easy transport and storage 6. Wheelchair frame in aluminum material in high quality 7. 360íp freely revolving 8.Scientific design allows saving energy up to 40% when compared with common chair . Packing information: Gross weight: 50/52kg Net weight(with batteries): 39/41 kg Overall dimensions(length x width x height): 89*47*81CM Carton dimension(length x width x height): 89*47*81 CM Seat dimension(length x width x height): 50x40x5 CM Battery dimension(length x width x height): 22x11x22.2 CM Quantity of 20'FCL: 60pcs Quantity of 40'FCL: 120pcs.