best noise cancelling headphone reports

For the identification of civilian ear, reporters interviewed dozens of senior industry experts, vendors and users of long-term use of earplugs, summed up some of the most important indicators are as follows:
  1 anti-noise performance: high-density earplugs are not enough anti-noise performance, the most important indicator is the choice of materials and formulations.
  2 softness: determine the long-term wear earplugs comfort, general and anti-noise performance of this indicator is contradictory, but professional sleep earplugs should combine the two indicators soft and anti-noise (best noise cancelling headphone).
  3 Durability: life earplugs, earplugs are mostly labor-type disposable products, while sleeping earplugs is to allow long-term safe use;
  4 safety indicators: such as whether through legitimate testing organization, whether in the formal channels available, whether domestic sales of legitimate products, how antibacterial properties;
  5 earplugs Shape: ear and ear canal determines the inner wall of the fit, and even sound effects and comfort. Certain brands of earplugs because it is foreign products, shapes and sizes is not necessarily suitable for people to use.

In addition, the slow rebound speed best noise cancelling headphone earplugs earplugs determine whether in fact only easy to wear ear, the index was first used for the ear of the customer. Long-term earplugs people are generally more familiar way to wear, slow rebound speed is generally not affect its wearer.