The Klein Tools Behind-the-Head Earmuffs feature a unique, versatile headband that allows for use with a variety of head protection. The angled, soft foam cushions provide an effective acoustic seal combined with an adjustable headband allowing for a personalized fit. When not wearing the earmuffs, pivot the earmuff cups to comfortably wear around the neck to keep them within reach.Features Inner earmuff cups are labeled inside to ensure proper wear Comfortable all day wear with low-profile and lightweight earmuff design Ability to Pivot Silicone rubber on the headband offers added comfort when resting around the neck Durable ABS plastic cup designed to withstand rugged environments Adjustable headband arms offer a personalized fit Unique and versatile behind-the-head design allows for earmuffs to be worn comfortably with most hard hats and caps Angled soft foam cushion offers an effective acoustic seal Earmuff cups pivot 145 degrees to comfortably rest around neck and keep conveniently close when not in use Earmuffs have a Noise Reduction Rating of 25dB for hearing protection in loud environments WarningsRead all instructions and warnings before using this product. Failure to follow these instructions and warnings may result in serious personal injury. Noise Reduction Rating: 25 dB Overall Length: 6.4 in (16.3 cm) Overall Width: 7 in (17.8 cm) Overall Height: 4.3 in (10.9 cm) Weight: 0.55 lbs Material: Earmuff Cups - ABS, Foam; Headband - PC, ABS, Stainless Steel, Glass Filled Nylon, Silicone, POM Insulated: No Standard: ANSI S3.19-1974 Type: Earmuffs Color: Grey/Orange Country of Origin: China DownloadsVideo DownloadSpec SheetInstructions60613_instructions_WR.pdf