1. Pull the headphone handle to the maximum distance.
2. Align the headphone handle with the notch of the accessory and rotate the accessory.
3. Move the accessory up first, then down, so that the left and right buckles wrap around the headphone.
4. When removing, gently pull the headphone vertically to the handle, and push the accessory up to detach the left and right buckles from the headphone.
5. Rotate the accessory to remove it.