TuneSound PRO solid plugs are designed for maximum damping when used with HYPƐAR Sonic Superior PRO earplugs. Replace your music filters with these plugs when you need the highest possible protection in extremely loud environments. TuneSound™PRO System music filters/plugs are needed for HYPƐAR™Sonic earplugs model Superior PRO. You easily change yourself to which music filters you want for each occasion. Plug for maximum damping.