There are two very excellent over-the-ear headphones at this price range: one is the innovative air mentioned above, which is not much to say. It is a powerful tool for female voices. The overall quality is very good, and it is mid-range and high-frequency. The disadvantage is that the sound insulation is slightly weak because it is not in-ear, and the low frequency content is small (the elasticity is okay).

There is another one I am also listening to, the Shure se215. These are Shure's lowest-end in-ear headphones, with a warm sound style. Compared to air, it feels different. First of all, 215 has a lot of low frequency. Secondly, its sound isolation is very, very powerful. Due to the special cavity design, many audiophiles even feel that it is a sound isolation competition. Finally, he can also improve the sound quality by changing the wires or adding a microphone.

se215 also has some shortcomings: First, the resolution is slightly lower, which is somewhat obvious compared to air. The second is that the high frequency is weak, or the three frequencies are unbalanced and low. Of course, it is suitable for listening to rock or music with a heavy rhythm. Third, the voice is muffled, and the chest feels a little tight after listening to loud volume for a long time. Finally, the transparent version will have the phenomenon that the wire will turn green after being used for a long time.

Generally speaking, if the taste is light, go for air, and if you like low frequency, go for se215. Both of these are very cost-effective and are very good entry plugs. No matter which one you choose, you can’t go wrong.