1. The valve trigger has a pistolgrip section that extends along the pistol grip portion of the handle within reach of a user's hand grasping the pistol grip portion from behind.
2. The force-feedback or haptic controller is a pistol-grip design with a trigger to activate movement and a thumb-controlled side button to open or close the gripper.
3. The force-feedback or haptic controller is a pistol-grip design with a trigger to activate movement and a thumb-controlled side button to open or close the gripper.
