Vintage set of Sony microphones. No way to test them, however each unit was powered up with a D-cell battery (not included) and the base unit recognized the units as "A and B". This was purchased overseas and the power plug is not grounded. The overall physical condition is good. The one mic has a crack in the base, likely from being tightened too much. See pictures for details. This is sold for parts as-is, although it appears to be working. Made in Japan.
eBay