Apparently, some users have been flashed with the notice that they could pre-order an in-car audio device that would play Spotify.

Furthermore, this neat little gadget would pack Amazon Alexa and run on 4G.

It could soon turn in to something more than a rumour as Spotify has now revealed that it's holding a mysterious special event on April 24 in New York City.

The invitation merely instructs the recipient to Save the Date and explains it's for a news announcement that will take place in the morning.

Naturally, commentators and pundits are putting two-and-two together.

However, some believe the teaser has much more to do with Spotify’s voice controls for its iPhone apps. It’s been widely known these controls have been beta tested recently, and the news announcement may be confirmation that the controls will be integrated into the app.

If correct this is small potatoes as far as a special Spotify event goes. Surely such an event, not to mention this level of intrigue, hints at something a little more important.

Speculation as to what this may entail dismisses the idea of a powered speaker to take on the likes of Amazon’s Echo or Apple’s Homepod.

These days it’s hard to move without bumping into yet another wireless, possibly smart, speaker. So making much ado about such a thing seems a little bit 'meh' to us.

Here at StereoNET, we reckon that this much noise could only point to a portable piece of hardware such as the in-car tech. This would also tie-in nicely with the voice control angle.

Of course, Spotify is keeping tight-lipped about all of this even when the player has been brought up in the Spotify support forums. All administrators will say is that it was a test or that "they didn't have any news on such a product."

Spotify has teased consumers in the past with a mooted portable, music device. A while back it was widely reported Spotify was developing a wearable device called the Pebble Core that had a captive 3G connection.

Word was Spotify was going to team up with developers to stream music through Pebble Core. It all came to nothing with Pebble losing money and subsequently selling its tech to Fitbit.

What else do you think Spotify could have up its sleeve that it would attempt to entice seemingly random selected customers to subscribe to for US$12.99 and US$14.99 per month? Let us know below.

All will be revealed on April 24. Watch this space.