Sin embargo, el reducido tamaño de sus copas auditivas no permite una cancelación completa. But the improvements, small but important are:Change the micro usb charger to usb c and add a usb a port (if its too hard just figure out the usb a situation later cuz u know its bigger cuz that might take longer to figure out. I use the foam that comes with it to block any crazy voice sounds and it works wonders. But the padding makes you feel like your walking on clouds. They were good about offering to exchange mine. The bigger ones actually seem softer than the smaller pair, which is strange! it is designed such that the controllers must be set in at an odd angle. His contribution blends the two approaches. Time will tell how the top surface holds up. (In the image, you can see a speck of dust in the upper right corner of the watch but that was my own fault for not noticing it, not a fault of the protector.