In the early years, a neck-mounted Bluetooth speaker was designed as a product with wearing attributes. The difficulty of the design lies in whether the outline trend of the product fits the man-machine of the neck, and wearing it will not bring too much weight-bearing feeling. Based on this point, multiple rounds of debugging and 3D hand board are required for verification, and finally a reasonable man-machine shape is obtained.

During the period of hand-holding, it is mainly to verify the product's 1. Size ratio 2. Wearing comfort 3. Whether the operation is reasonable and convenient 4. Overall appearance