It?s a great buy and I highly recommend it. And because everybody is different, it includes several different sized rubber tips to fit any size ear canal. Second, the screws that secure the bars across the bottom were too long, they ended up pushing through the bottom plank and cracked and ruined the finish. 5 - Razer Synapse software does not recognize the mouse as being connected, so unable to customize buttons, settings, etc. I have very sensitive skin and cannot use any soaps/face washes with any chemicals. As long as you line up each side up beforehand as a test run (do many test runs to avoid having to rip it off and reapply, which is not fun) so the indicator light in front shows clearly before you expose the self adhesive protection, you will be good to go! I never put anything smaller than an elephant in my ears, per my doctor?s orders. Mi hijo las usa cada dia para estar en el cole y le van perfectas y le encantan! Frustrating, but I made it work. Sound quality is great.