Chances are you’ll have come across IP ratings if you’ve ever bought a pair of headphones, Bluetooth speakers or a smartphone. But what do they actually mean?
If you're just focussing on hi-fi kit to use indoors, you don't need to know. But if you're planning on using devices like wireless headphones or Bluetooth speakers out in the elements, it pays to be clued up on IP ratings. Otherwise you could see your shiny new device come a cropper.
