The Plugfones Dynamics covers all your earplug needs from complete noise canceling to noise dampening. Dynamics do not play music like our traditional Plugfones models and instead include 2 specialized sets of earplugs that can be used in a variety of situations. The first set with gray housing is a high-end dead earplug that offers full sound protection. On the opposite end of the spectrum are the high-fidelity earplugs that feature a premium attenuation filter that lowers the volume without ruining any of the sounds. Perfect for concertgoers, this earplug allows you to experience the full body of sound without the risk of injuring your hearing. The plugs themselves are replaceable giving you the option to keep a fresh pair of plugs at hand without needing to repurchase the sound-canceling portion. An included cable allows you to connect the plugs and keep them around your neck if you should choose. In addition, an included pinch case with a carabiner helps you store and secure your Plugfones Dynamics.