Speed:45 steps per minute. The motor is not adjustable in speed. The item "Foldable electric climbing stair wheelchair battery for disabled person" is in sale since Friday, October 11, 2019. This item is in the category "Health & Beauty\Medical & Mobility\Mobility/Walking Equipment\Wheelchairs". The seller is "huangweiyi2013" and is located in shen zhen.This item can be shipped worldwide.