This is a Teac Reel to Reel Discreet Four Track Tape Recorder, as you can shut off each individual track for individual track recordings. I am the original owner and this Teac recorder does work perfect. I have had this Teac recorder from the 1960's so it is a rare vintage antique. I also have the original Teac head demagitizer and the Teac Stereo mixdown unit as well which will be included in the sale. The model number is A 3340 Any questions please ask.