Plugfones Guardian Earplug-Earbud Hybrid - Blue Cable / Yellow Plugs SoundSeal Noise-Suppressing Technology Interchangeable ComforTwist Foam Plugs (NRR of 23 dB) and ComforTiered Silicone Plugs (NRR of 26 dB) Tuned Speaker Double-Reinforced Jack Sweat-Resistant Independently Tested and Compliant with ANSI S3.19-1974 Noise Reduction Standards Meets NIOSH Criteria and OSHA Guidelines When Used to OSHA Regulations Unique Patent Pending Design Guardian Earplugs with Audio (1) Pair Interchangeable ComforTwist Foam Plugs (1) Pair Interchangeable ComforTiered Silicone Plugs Waterproof Case Cable Management Clip Quick Start Guide Length: 54&#034; Weight: 0.35 ounces (10 grams) Speaker Type: Tuned