Wireless earbuds and needle: what they have in common

1. Step 1. Wireless earbuds — evolved from — Headphones. Wireless headphones.
2. Step 2. Headphones — has part — Headband. A band that presses the cups.
3. Step 3. Headband — is part of — Bit and bridle. Straps on the head.
4. Step 4. Bit and bridle — is made of — Bone. Early cheekpieces were carved from antler and bone.
5. Step 5. Bone — is material for — Needle. The first needles with an eye were carved from bone.

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