Can noise canceling headphones protect your hearing? 

This phenomenon is called auditory masking. The human ear has a hearing threshold within which sound can be heard. This hearing threshold varies with the background ambient noise.

For example, the hearing threshold will be raised in a noisy environment. At this time, people can hear high-volume sounds, but cannot hear low-volume sounds, so we unconsciously turn up the volume of our headphones to listen in the subway. Increase the aesthetic feeling and external tensile capacity of the data line;

It is free of thread drawing, soft and bent, with excellent resilience, and is not easy to tangle or crease;Excellent durability, not easy to deform High hygroscopicity;The dimensional stability is not enough.

Polyester fiber braided data cable

Polyester fiber is a synthetic fiber obtained from the spinning of polyester polycondensate from organic dibasic acid and diol, which is called PET fiber for shortExcellent wrinkle resistance, elasticity, and dimensional stability;Good electrical insulation performance;It is resistant to sunlight, friction, mold, and moth; It has good resistance to chemical reagents and can withstand weak acids and bases.

The texture is hard and the resilience is poor, which is easy to cause fracture and peeling; The surface is rough and dull; There is an obvious plastic smell, which will release harmful substances.

I tinker with the included apps and any bonus features (like location services, voice activation, dual-device connection, and control customization). If applicable, I mist the headphones with water to see how moisture might impact the touch controls. I try each pair on with glasses, too. And if the headphones have active noise cancellation that sounds subjectively effective, I pass them on to Brent for measurement.