The ISOLATE micro ear plugs, currently the subject of a crowdfunding campaign over on Kickstarter, were developed by Flare Audio to offer a degree of noise protection and isolation that has never been available before in a production package at this price point.
These micro ear plugs are unique in that they don't require the use of batteries, which necessitate annoying re-charging tasks. Indeed this plugs are more than capable of blocking all sound from entering your ears, including the lower bass frequencies. This means that they can block out engine noises when you're traveling in an airplane, as well as keep out unwanted reggaeton beats from the house party next door when you're trying to get some shut-eye.
These micro ear plugs are ideal for travel as well as outdoor work in loud environments.