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The difference between headphones and headphones

Wrap Range Difference: The earphone can cover the whole ear, but the earphone is just stuffed into the ear.

Headphone suppliers provide high-quality headphone gifts for children and businessmen

Earphone factories like to create gifts according to people's needs. The company's headphone gift consists of many elements, each of which aims to arouse the emotions needed in the hearts of the recipient. It's not clear what really touches people: emotional packaging, functional souvenirs with logos, companionship, comfortable materials. But we always try to be perfect.

How much do you know about wired headphones?

If you are careful enough, you can find that in addition to the sound hole on the earphone, there are often a few small holes in the back. What are these holes used for?
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