Creating a quality back-to-back sit-stand solution is made easy with the HumanMotion HMQB3A+P1 height adjustable desk frame system. Dual motor design produces increased lifting ability and improved function for commercial and home users. Best of all, dual motors mean more stability, perfect for heavy users. The system includes two HumanMotion P1 advanced digital memory keypad controllers that provide each user with total control over desk motion and settings. The P1 stores up to 3 heights, allowing either user to switch between sitting and standing with the touch of a button— desktop height is conveniently shown on the display. In addition, the P1 controller incorporates an activity timer that can be set to remind the user when to adjust movements in half hour increments (maximum 2 hours). The 3 stage, basic style lifting columns are minimalist in design and fit any décor. The durable steel frames are precision-manufactured and powder coated for long life and contemporary appearance.