The Coolest Fanny or Manny PackTM or CF2 from Common Fibers is a wearable carbon fibre ‘party pouch’ with Bluetooth connectivity and integrated speakers.
Well actually, it’s an April Fool gag but may soon be a Kickstarter project.
If it ever goes into production it’ll cost around €233, which will be the least of your problems if you’re prepared to wear it in plain sight.