1. There are two holes in the adjuster buckle: A big one and a small one.
調節扣有兩個洞，一小一大。

2. Insert hook through the smaller hole.
將鈎從小洞方向穿入

3. After insertion, grab onto the earloop with the hook
穿過之後，將鉤鉤住耳繩

4. Pull the earloop back through the buckle, then adjust freely.
將耳繩拉回穿過調節扣，然後隨意調節鬆緊度