Specification: Controller: zw Motor: 150w*2 Battery: lead-acidú¿24v12ahx1ú¬ Incline capability: ín12íp 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 Widthú¦72cm /28í¦ Seat width: 46/50cm 18í¦/20í¦ Seat height: 51cm /20í¦ Height: 95cm /38í¦ Brake: electromagnetic Packing information: Gross weight: 50/52kg Net weight(with batteries): 39/41 kg Overall dimensions(length x width x height): 115x75x103cm Carton dimension(length x width x height): 90*47*90cm Seat dimension(length x width x height): 50x40x5.5cm Battery dimension(length x width x height): 22x11x22.2cm Quantity of 20'fcl: 60pcs Quantity of 40'fcl: 120pcs 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 By carton