Doctor said:gen I would be the go for you !
the 2300 only has a head phone plug that goes in ????
everything after the detector is optional yeah ????
Doc
The SDC has an internal battery compartment that takes 4x c cells, the audio is via either an on board speaker (which IMHO is of poor volume) there is a headphone plug which takes a specific plug (Nenad has made an adapter) you can see this in the photos above, from here you can plug in your choice of headphones speaker, booster or wireless set-up, hope this explains it.
cheers
Lee
ps I would be very interested in testing or purchasing a booster of you, PM me if you like with a price, maybe you can send me some more pics & more detailed info via email??????