Headphones are divided into head-mounted, in-ear and ear plug. The least harmful thing is closed headphones. Earplugs and headphones will leak if they are not sealed well, and the auricle will hurt if the headphones are worn for a long time;
In-ear headphones are headphones that go deep into the ear canal. Although the tightness is good, the ear canal will be sore after wearing it for a long time, and the volume will naturally hurt the ear. Headphones Closed earphones are comfortable to wear without leaking sound and have high fidelity, which is less harmful to ears than in-ear earphones.
Misunderstanding of wearing mode and active noise reduction
According to the way of wearing, headphones can be divided into two categories: headphones and earplugs. Among them, earplugs include in-ear, semi-in-ear and flat-headed headphones. In recent years, "behind-the-ear" bone conduction/air conduction headphones are also on the rise, but the most popular in-ear earplugs are currently on the market. Compared with semi-in-ear earplugs and flat-head earplugs, in-ear earplugs have no overwhelming advantages and disadvantages except obvious sound insulation effect.
The noise reduction function of headphones can be roughly divided into ANC active noise reduction and passive noise reduction. Simply put, passive noise reduction often only relies on earplugs or headphones to seal the ear canal to physically isolate and reduce environmental noise; ANC active noise reduction is to produce sound with opposite phase through microphone and independent signal circuit, so as to cancel the picked-up environmental noise and achieve the purpose of noise reduction.
At present, many active noise-reducing headphones also support "multi-gear noise reduction" and "transparent mode", and the usage scenarios are more flexible, so the cost and price of headphones supporting active noise reduction are often higher.