The buyer must establish beforehand that this remote suits their own TEAC Audio equipment
How?
Try looking in the user manual, if you have one.
If the manual is not available, try to see if the remote button layout looks “right” compared to your old remote – a bit hit & miss though.
Please be aware that every single remote sends a unique code to the equipment under control, just because you may have a TEAC Audio System, it does not mean this remote will control it.

TEAC Audio System SPARE PART
RetroUSED IR Remote control
GenuineTEAC product NOT a 3rd party copyPart number: RC-1019
I could not find a reliable reference to provide compatible TEAC Audio system models so it is vital that you compare your old remote layout with this remote, or reference to your User manual (if you still have one)
This remote has basic function buttons to control a CD player, DVD player, Tuner and audio amplifier (which appears to be capable of 6 channel operation).

Remote onlyClean – although with some very light superficial marks on the front of the case
All buttons functioning greatBattery compartment clean and undamaged (no rust or corrosion due to leaking batteries!), this uses 2x AAA batteriesUsed but undamaged in any way – tested 100% functional
NOTE: My testing method is to insert batteries and look for the IR emissions from the remote control and ensuring every single button sends out an IR code. I must assume though that the codes being sent are correct, I do not have every piece of equipment that these remotes control here at the house!
Stored/supplied in a sealed plastic to maintain its condition
Batteries will NOT be supplied (2x AAA batteries) to prevent any issues with Australia Post (they are very risk adverse to shipping packages with batteries inside) and also this keeps the shipping weight down to a minimum