It seems cassette tape, the retro gadget has left us, but the tape came back with IMIXID’s help.
IMIXID has rolled out several gadgets themed by the classical cassette tape. IMIXID Power Speaker is the latest gadget, which is a power speaker shaped as a cassette tape. It comes with a built-in 800 milliwatt amp and rechargeable battery connected AC outlet or PC via USB cable.
Unfortunately, we have no further info about the release date. However, there are much more wonderful gadgets relevant to cassette tape such as USB flash drive and USB hub.
IMIXID Power Speaker just like cassette tape Source
where can i buy this IMIXID Power Speaker just like cassette tape?
You may like to check this article: http://gadgetsin.com/cassette-tape-styled-portable-speaker.htm