Usually when buying headphones, the minimum frequency range is 20-20kHz, the power is greater than 100mW, and the harmonic distortion is less than or slightly equal to 0.5%. If you cannot meet the above requirements, you’d better not buy it. If the performance of the product is too high, it is best not to buy it. The earphones produced by the first-brand earphone suppliers of earphone manufacturers usually use engineering plastics, so the appearance is very smooth, and there is a certain degree of stress and toughness; it does not have a hard feeling, the workmanship is relatively fine, the hand feels excellent, and it does not use inferior quality The roughness of plastic and the comfort of pairing with headphones. In addition, the lead wire diameter of the earphone is relatively thick, which can ensure stable transmission, and the wire feels soft and hard; the plug is made clean and neat without leaving burrs, and the coating is smooth and even
From a practical point of view, the small and exquisite earphone body penetrates into the ear canal, and the Shenzhen earphone manufacturer has born an extraordinary and reliable wear. The pressure and friction of the ear canal to the outer ear canal make it easy to squeeze the bus and the subway while listening to music; Excellent sound insulation is more adaptable to these noisy urban environments, and there is no pressure to answer the phone and listen to music.
From the perspective of listening, the closed environment formed between the ears of Shenzhen headphone manufacturers and the generating unit greatly reduces the problem of sound leakage, and the sound is more concentrated. Both the sound details and the low-frequency texture have been greatly improved. Because of the sound insulation of the in-ear type, rich details can be heard at a small volume, there is no volume problem in the earplug type, and it also makes a good contribution to protecting the ears after use.