Buy.com has these MEElectronics Sound Isolating In-Ear Headphones w/Mic 2 Pack for $11.99 with free budget shipping, the lowest price we could find by $5. These headphones isolate noise so that you can listen to your music at safer volumes. They work with most mp3 players or mobile phones. They are compact and lightweight for easier transportation and come with 3 sets of ear tips for a better fit for your ears. Sales tax is only charged in CA, MA, MD, NY, and TN.