The Spectrum +3 was designed to load & save to its 3" disk drive, so leads to allow program loading from a cassette player can be hard to come by.
These brand new leads are 1m in length and allow the connection of a standard tape recorder (with Jack EAR / MIC sockets) to the "TAPE/SOUND" socket of the +3. Software can then be loaded from and saved to cassette tape.
Connections:
Red 3.5mm Jack Plug lead to cassette player EAR socket (loads programs)
White 3.5mm Jack Plug lead to cassette player MIC socket (saves programs to cassette)
3.5mm Stereo Jack Plug to TAPE/SOUND socket of the +3 (or EAR/MIC socket on Spectrum NEXT)