ACU Filtered Earplug Pro Audio Series While this process consumes significant

While this process consumes significant labor

Soft material lining inlay to protect IEM from any dent

it achieves full-frequency balance with high fidelity and low distortion

creating regular patterns (such as sunburst or wave patterns) on the metal surface with a depth of only 0

ACU Filtered Earplug Pro Audio Series While this process consumes significantACU Filtered Earplug helps to protect your hearing from the loud and noisy working environment while allowing you to communicate with one another with reduced volume. Built with the latest 3D printing technologies offers the best fitting for long hours wearing and structural durability. ACU filters are exchangeable with 3 different acoustic resistance allowing the user to choose the suitable one for the working environment. Material: Hard