YES EAR

For improved concentration and acoustic protection Search for the optimal structure. Human engineering design has fundamentally blocked by the cause of the gap in the waterproofing membrane. Helps the instructor to say unique, patented technology, you can relax and enjoy the fun of water sports. Dynamic Leisure Sports Awards in sudden external pressures and impacts from activities that do not fit earplugs pushed protects the eardrum safe ergonomic design.

Well yes after the conversation in the low frequency band is smooth, it gives a high sound insulation to the noise of a high frequency band, with excellent waterproof function is effective in preventing otitis media.
It complements the shortcomings of the existing earplugs !!The low-frequency sound properly, so that damage to the auditory nerve can interfere with concentration of high-frequency band sound high sound insulation designed. Headache and ease the symptoms meonghaeji has a patented pressure control.
Reduce the optimum ergonomic design with thick insulation ring contains deep canal towards the end of the wing touches the skin substantially for sensitive skin and has a high-precision machined to 0.03mm. Also can be used to select the sound insulation ring fits in your ear canal There is.