http://www.amazon.com/Shure-SE210-Sound-Isolating-Earphone/d...
Those effectively eliminate auditory ADD in an open environment. Nothing has been more effective than these for me.
Those effectively eliminate auditory ADD in an open environment. Nothing has been more effective than these for me.
Happened to me twice before I ditched using in-ear headphones at work.
The Shure does not use active noise cancellation like the Bose, but I think it is more effective simply because it fits snugly in your ear like a set of ear plugs. (It's also more uncomfortable because of that.)
Note that earplug use can cause earwax buildup. There are a bunch of home remedy's that can help. Talk to your doctor about options.