A few things may be causing you to still hear outside noise when wearing ISOtunes hearing protection.
1. You purchased a product with Aware Technology. Aware Technology purposefully amplifies outside noise, similar to a hearing aid, to improve your situational awareness and safety. You can turn Aware Technology off by locating the Aware Volume buttons and pressing “-” until you hear a beep.
2. You need a larger eartip size. ISOtunes TRILOGY eartips block noise with heat activated polyurethane foam. This foam needs to fully fill your ear canal to block the optimal amount of noise. The right size eartip should:
1) Feel snug but not painful
2) Easily stay in your ear
3) Block the greatest amount of noise
3. You’re wearing silicone eartips. ISOtunes products come with double or triple flange silicone eartips for casual listening. These eartips are not ANSI certified for noise reduction and should not be used to block noise in loud environments. Instead, use the provided ISOtunes TRILOGY foam eartips.
4. You’re experiencing noise-isolation, not noise-cancellation. All ISOtunes products use noise-isolation to passively block noise. At this time, ISOtunes does not sell any product with active noise-cancellation technology.