When buying noise-cancelling headphones, you need to pay attention to the following main parameters:
1. Noise Cancelling: The number here represents the effect of the noise reduction function, and the higher the noise reduction effect, the more effective the shielding of external noise. The noise reduction effect of the general mainstream noise cancelling headphones is between 25dB-40dB.
2. Charging time: the noise-cancelling headset needs electric energy to drive the noise-cancelling chip, and the longer the mileage of the headset, the better. Generally, the charging time of mainstream noise-cancelling headphones is about 20 hours.
3. Portability: Choose light-weight, space-saving noise-cancelling headphones, which are more convenient to use.
4. Band: Multi-band noise reduction effect is better. The general mainstream is dual-band noise reduction.
5. Sound quality: The sound quality of noise-cancelling headphones is also very important, and it is necessary to pay attention to the frequency response range of headphones, speaker driver model and other indicators.
6. Comfort: Choose soft earplugs and noise-cancelling headphones with adjustable headband, which are easy to wear for a long time.
7. Additional functions: Additional functions to enhance user experience, such as touch operation, flashlights, etc.
8. Price: The price of headphones with different noise reduction levels and configurations will naturally differ, and find a balance according to the budget.
The above are mainly the key parameters that affect the purchase of noise cancelling headphones, and it is recommended to fully weigh the needs and budgets of all aspects to find the most suitable for their own noise cancelling headphones.