I've had this, admittedly grubby, shoebox cassette recorder for a while, I think it originally belonged to my sister, like most of my collection it badly needs a clean
It offers all the usual features you would expect from the era, it can play and record type 1 normal cassettes, recording from either the built in microphone or an external mic (or a Sinclair Spectrum)
For ease of finding music tracks or computer programmes a tape counter is present, the unit can be powered by batteries (4 x C cells) or by the mains via a standard C7 (figure 8) lead
It features auto stop in case you fall asleep, or forget to stop the tape after your game has finally loaded
It also has a silly little record button that can easily be pressed if you're not paying attention, although it does have the write protect mechanism
Batteries go in here, the product model label is here too
Monitor (or headphones), remote, Mic, and the volume control on the left, and the C7 power connector on the right
The cassette door open and closed
It has a cheap permanent magnet for the erase head, and I expect DC bias for recording, which is fine for computer data, which these shoebox recorders were mainly used for
D - BREAK - CONT repeats, 23:1