Big bass no fidelity
If you like big sound, bass, an earplug and a nice earphone's purse get this set. Otherwise, these sound crude.I had been using Philips SHE5910 Virtual Surround, which broke one day. So I tried these earplugs from Koss for 2 minutes and ditched it for good. The Philip has higher fidelity, clear vocal, more high and mid range, but less bass compare these Koss. For large headphone, Sennheiser's lines are the best.I like jazz, vocal and some techno trance and these will not do. The sounds are unclear, muggy and you get ear fatigue. Maybe if you like hip hop or hard rock these might do, but they are flat out cheap and un-engineered.Koss from my experience has big sound and bass, but lack fidelity.