Nitecore NE20 Bluetooth Electronic Hearing Protection Earbuds Extensive Hearing Protection If you work with heavy-duty, loud machinery, you're aware of the risks high-decibel sound can pose to your hearing and overall health. Protect yourself with Nitecore's NE20 Bluetooth Electronic Hearing Protection Earbuds. Two layers of noise canceling technology protect you from sounds over 82dB: the Active Noise Cancelation chip, and Passive Noise Canceling memory foam inserts. Select from 3 user modes to control how much background noise is filtered out. These intuitive earbuds can give you subtle yet effective protection in work or tactical environments! Voice Tracking The NE20 Earbuds are equipped with voice tracking technology that can accurately amplify the human voice amongst background noise. You'll be able to communicate with your team easily even when in the presence of loud, heavy-duty machinery. Bluetooth Capabilities Connect to smart devices thanks to the Bluetooth 5.3 capabilities. With the touch of a button, you'll be able to make phone calls or listen to music. This increased functionality makes these earbuds perfect for working men and women who need hearing protection and the ability to stay connected.