1.Aluminum folded frame(new design), 2.Front castor: 7 inch PU solid tire and also can optional 8 inch inflatable tires. Rear wheel(motor wheel): 8 inch PU solid tire 3.Quick-release aluminum lithium battery 24V*8AH, make the wheelchair more light, N.W. (without battery: 18KG) . Quantity of battery can change one pieces or two pieces . 4.24V brushless motor drive 5.Dedicated brushless motor controller(special for wheelchair) with programming function 6.Folding size is 0.14m³ can be put in a samll bag 7.Maximum speed: 6km/h 8.Maximum climbing degree: 8° 9.Motor: 150W*2,and charger time is 5h 10.Weight capacity:120kg The folding and opening can be completed within a few seconds.It can be easily put into the trunk of the car. The operation is simple, itself with electromagnetic brake.Safe, reliable, comfortable, and easy to understand.