This Sony WM F51 is also known as HIP Walkman. It was released in 1987.
Very rare to find one that is working today. Most of them are either earphones dislodged or missing, or radio not functioning.
Type: Audio player
Media type: Tape (Cassette)
Power: AA battery × 1
Power line (optional AC adapter AC-D1M)
Maximum output: Headphone output 4mw + 4mw
Body dimensions: 91.5 × 108 × 31.5 mm (WxHxD)
Weight: 220 g
Radio: AM/FM/TV tuner
Fully functional and in excellent cosmetic condition. It is difficult to come by one that is working perfectly. Mostly are non-working and headphones broken.
All my items on sale are personal collection and well taken care of.
I will be putting up more vintage cassette players in the comings days.