 I'm Lisheng Kong, I'm a PhD student at the University in Ren. In this talk, we even focus on our current work for the design of a hand-to-hand device for navigation. For a variable hand-to-hand device, the hand-to-hand extermination includes valuable tank towels, skin strength, etc. The body parts to place the device range from the hand to the foot. Developing such a device involves the target objectives, including the form factors, the weight, the impairment, and the comfort to the user. The company device for navigation requires a pen-to-hand managing and recognition load. Based on the objectives, we present a variable hand-to-hand device, which is small-sized and lightweighted. It can be wore on the forehead, the arm, and the back of the hand. The device is composed of a catastrophic structure that's using two linear motors to move a pin on the plane parallel to the skin. And in the section of the guide, we fix the cylinder pin, which also hosts the metallic sphere. The sphere provides location feedback when it is free to rotate in its housing, and skin-thread feedback if it does not rotate. Spring on the pin ensures that the sphere is always in contact with the skin, applying a constant pressure throughout the interaction. Driven by two linear motors, the pin has a workspace of 12 x 12 mm. In the perceptual evaluation, we tested the GND for reference location stimuli from 1 to 11 mm, with a step size of 0.1 mm. In the sub-revenition evaluation, the participant will ask to recognize five different shapes straightened on the screen when the device was wore on the forehead, the arm, and the back of the hand. Safe recognition and the serpentines were generated by the continuous movement and effect. The horizontal line was found the easiest to recognize. The navigation experiment was carried out with a motion tracking system in real time, but it depends who asked to wear the device on the forehead, keep their heads pointed forward, and follow the guidance feedback. The feedback was proportional to the distance of the user from the pass. If the person had to turn left, the pin would move the sphere towards the left. For turning right, the pin moved towards the right. We consider three target paths. The angle was calculated at the average distance of the user from the pass throughout the trial. In conclusion, we present a weblock of the device which has position location feedback and lightweighted and small sized. In this work, we only focused on position feedback, but we will work on relation with the constraints feedback as we are in future work. Thanks for your attention.