Amazon Prime Day isn't even here yet (it's happening 15-16 July) but this hasn't stopped Amazon from rolling out the deals. The latest is for those looking for big-sounding audio on the go.
It's got 24 hours' battery life, it's waterproof and if you get two of them they can link up for wireless stereo.
The normal price for the Anker SoundCore 2 is £39.99 but there's currently 30% off this price and you can get it for a decent £27.99.
Also, as it's Bluetooth 5, you can be 66-feet away from the thing (well, your phone can) and it will still play.