This module is suitable for all aircraft model remote controllers. It can directly replace the potentiometer on the aircraft model remote controller or the potentiometer on the joystick. It can allow the corresponding channel of the aircraft model receiver to be controlled by this module. Any aircraft model remote controller can easily achieve head tracking function or sensing control upgrade. It can also be used with a servo controller or a wireless servo controller to completely replace the potentiometer. Colour:As Shown Material:plastic Due to different batches, there may be differences in product appearance and printed text, which not affect use Package Contents: 1 x Headtracker Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.