The headphones are called Worktunes and should be at most hardware/big box stores (and online-try Amazon). Good Luck

Stihl also carries them.

Cannot find at Stihl,but HD and Ace have them.Also,Rockler Woodworking has them on sale.

lowes, menards and occasionally TSC(tractor supply company)

i love mine, good luck

I have a few different headphone/radio combo units that I used to use when jogging. Then I read several reports that when the radio receives a signal it produces electro-magnetic waves, and being located in the headphone unit that puts it very close to the brain. The farther from a tower the stronger the electro-magnetic energy becomes as the radio powers up to pull in a distant, weak signal.
I have switched to a noise cancelling headphone unit to which I can connect any source (radio, ipod, etc.) or use them alone to cancel out noise. I have been using the John Deere noise cancelling headphones, but just today received the Audio Technica NC phones I ordered as the Deere phones don't cancel out enough of the noise for my taste and I read good reviews of the Audio Technica phones. Haven't tried them yet. I usually keep the radio or ipod in a jacket pocket. Works for me.

Everyone has their own opinions, but i want to hear my engine running. Never know when you may run over some un-seen object and all hell break loose. JMHO

Here is the Stihl version, made by Peltor but priced better for us.

Here is a link that might be useful: Stihl Worktunes

I can hear my engine running with hearing protection. In fact, I'd say I can hear the engine better with the protection since it cancels out the really loud noises and allows me to hear the more subtle abnormalities.

Sorry i thought i read "headphones with a radio". My mistake.