Guardian PlusFocus on WorkPlugfones are designed to enable you to focus on the work at hand, and not on the things happening around you. The SoundSeal earplugs stop unwanted noise from entering while the embedded speaker allows you to focus on the sounds you do want.Quickdraw Easy Access ControlControl your music and manage calls with the Quickdraw Easy Access Control. Ruggedized buttons allow you to play or pause, answer or end calls, adjust volume, progress through songs, and more.IsoTalk Noise Isolation MicrophoneThe IsoTalk is a built-in noise isolating mic that reduces noise for phone calls. The mic eliminates noise so the person on the other end can hear you, not what's going on around you.FEATURES SoundSeal? Noise-Suppressing TechnologyInterchangeable ComforTwist? Foam Plugs with Noise Reduction Rating (NRR) of 23 dBInterchangeable ComforTiered? Silicone Plugs with Noise Reduction Rating (NRR) of 26 dBIsoTalk? Noise Isolating MicQuickdraw? Easy Access ControlTuned SpeakerDouble-Reinforced JackSweat-ResistantIndependently Tested and Compliant with ANSI S3.19-1974 Noise Reduction StandardsMeets NIOSH Criteria and OSHA Guidelines When Used to OSHA RegulationsUnique Patented Design WHAT'S INCLUDED Guardian Plus? Earplugs with Audio(1) Pair Interchangeable ComforTwist? Foam Plugs(1) Pair Interchangeable ComforTiered? Silicone PlugsWaterproof CaseCable Management ClipQuick Start Guide SPECIFICATIONS Length: 54"Weight: 0.5 ounces (14 grams)Speaker Type: Tuned