How to distinguish the l and r of USB-A headphones

Generally speaking, the design of headphones takes ergonomics and wearing comfort into consideration, so the design of the left and right ears is often slightly different. You can distinguish them by the following methods:

Observe the shape of the headphones: Some headphones have slightly different appearance designs, such as the curve on the inside, the shape of the earplugs, etc., to fit the contours of the left and right ears.

Find the logo: Observe the inside of the headphones or the cable, look for the R or L logo, and make sure the headphones are worn on the right ears.

Try to wear: When wearing, if you feel uncomfortable or the sound effect is not correct, it is likely that you are wearing it on the wrong ear. Adjust it slightly until you find the best wearing position.