Teac Model PC-10 Portable Tape Recorder, it gets a really good review but very expensive in May 1977.
Sony Discman D50 MK II from June 1986, Electronics Today (UK) https://www.americanradiohistory.com/ETI_Magazine_Canada.htm
Early Sony DC6 Review, the reviewer has a "review copy" of the unit, I wonder with the serial number is on that one? From May 1987, Electronics Today (UK)
Electronic Times Australia 1982 and a review of the 1982 Japanese Electronics Show, towards the end they talk about how stereo microcassette will be the next big thing? Some information on the Linn Sondek (for Jorge) is included and there's the KLH Solo Product introduction on the second page.
Seven hip stereo cassette players reviewed, August 1983 Notice that KLH is made by Cybernat (sp?), confirming what many have thought, now if we could figure out who made the clear AKAI and all of that models clones. https://www.americanradiohistory.com/Archive-Electronics-Today/Australia/80s/ETI 1983-08 August.pdf
From 1982, the TV wristwatch is not far away! Back then we waited patiently for this developement, the comic strip Dick Tracy had one years before and every kid wanted one.
Technics SL-XP6 Review, October 1989 Poptronics https://www.americanradiohistory.com/Archive-Poptronics/80s/1989/PE-1989-10.pdf
Lloyds Handy Music Micro Stereo Radio, 1989 Poptronics Magazine. Lloyds was mostly private labeled low quality merchandise, I'm surprised they devoted the space for this with so many other, much more interesting products available. The magazine has very little advertising so it's not a "tie-in".
Stereo-To-Go 1986, from the CES show, where all of the good electronics were shown for the first time. This used to be a pretty big deal up until a few years ago, now you don't hear as much about it.