This is a New (NIB/NOS) unused Radio Shack model # 22-305 Portable Frequency Counter from a local Estate. It has not been used, and is in the original box with its packing material, telescoping antenna and instruction manual.

It requires (not included) four - AA-sized batteries (Alkaline or Ni-CAD) or a 6-Volt adapter. It can measure frequencies of Transmitters, etc. from 1 to 1300-MHz.