In the film shooting environment, professional photographers need to accurately control the lens to shoot the desired picture, and the control of focus plays a very important role in the expression of the picture. Therefore, this wireless follower is designed to improve the accuracy of control and positioning and the convenience of operation for the needs of professional photographers. In order to reduce the complicated use steps and further improve the control experience, the internal antenna arrangement structure is optimized, and the radio frequency antenna is readjust and optimized.