Use it to combine your microphone with a CD or MP3 player, computer, DJ mixer, etc., for paging and announcing over background music in banquet halls, sports arenas and party houses.
Accepts the stereo line inputs via 1/8" stereo jack or dual RCA phono jacks and sums them with the microphone into a single balanced mono output. These are wired in parallel and can be used as a loop thru from one to the other.