I have been on the lookout for a single ear speaker that will work with the 246t scanner and cant even locate that. I asked unidan and they said we dont make them and did not offer any one who did. I think even a bluetooth would be nice. I see a lot of cell phones with the bluetooth but I dont know if one would work or not.
I recently bought this from my "The Source Store" formally in Canada as "Radio Shack". All you have to do is place the bluetooth transmitter into the headphone plug and listen on the bluetooth headset and it's a go!!! It works great and I can walk around the house and still listen to everything! Here is the link.