Smart glasses, wireless earphones, wearable device assembly, and control method therefor

A pair of smart glasses, wherein the smart glasses is capable of being electrically connected to a pair of wireless earphones, one wireless earphone is provided with a second electrical connection part, and the smart glasses comprise:

• a main body;
• and
• a pair of glasses legs, wherein one glasses leg is rotatably connected to the main body, and the glasses leg is capable of being rotatably switched between a first position and a second position relative to the main body;
• and the glasses leg is provided with a first electrical connection part, at least one of the glasses leg or the main body is provided with a battery module, and the first electrical connection part is electrically connected to the battery module;
• in a case that the glasses leg is located at the first position, the glasses leg is separated from the wireless earphone;
• and in a case that the glasses leg is located at the second position, the glasses leg is connected to the wireless earphone, and the first electrical connection part is electrically connected to the second electrical connection part.