Traditional Culture Encyclopedia - Traditional customs - What are the specifications of earphone plugs?
What are the specifications of earphone plugs?
Headphone sockets are usually used in the following ways:
2.5mm headphone jack, generally used in some mobile phones, Bluetooth, etc.
3.5mm headphone jack is also the most widely used one.
6.5mm earphone socket, professional equipment is common.
Some of these sockets can be subdivided into 3-pole and 4-pole (with microphone).
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