“We conducted a range of tests on Calmer and found it to significantly reduce sound levels at middle to high frequencies (2 kHz – 8 kHz)

these earplugs deliver a high-fidelity sound experience

Most in-ear earphones with 2

changeable tone and volume

Mack's are terrific for sleeping with moderate noise levels and reducing wind noise when biking (they work great under a helmet

Macks Dreamweaver Contoured Sleep Mask w/ Ear Plugs Noise Cancelling “We conducted a range ofMacks Dreamweaver Contoured Sleep Masks feature a contoured design which allows complete freedom to open and shut the eyes, while keeping the wearer comfortable inside a curtain of darkness. Made of silky smooth material, Mack's Dreamweaver Sleep Mask is so light and slim, you'll hardly know you're wearing it. Features dual elastic straps with adjustable tensioners for optimum performance and comfort. Great for air travel, daytime sleep, or catching a