Funny thing is

If it does

Rinse and dry making sure not to leave the strap in direct sunlight

and 8 lullaby tracks

reduces sound levels evenly across the frequency range without changing the sound quality

Howard Leight HL400™ AM Ear Plug Dispenser (w/ 400 Pairs Laser Lite) NAM-False Funny thing isThe HL400AM dispensers for earplugs are designed to meet todays safety needs. The turn knob and catch tray are treated with an antimicrobial additive, making earplug dispensing more hygienic. The antimicrobial additive releases slowly to reduce the bioburden on the turn knob. This way the product remains clean and does not require extra cleaning, thus, driving cost savings. This product does not protect users or others against disease causing