A wearable device includes a frame, two feet, and two pivoting modules. Each of the pivoting modules includes a first bracket fixedly connected to the frame, and a second bracket fixedly connected to one of the feet and pivotally coupled to the first bracket. The second bracket includes a positioning member and an inserting member. The positioning member is located in the first bracket, and the positioning member includes a plurality of slots. The inserting member is switchably inserted into one of the slots for adjusting a maximum outreaching volume from the frame to the feet.