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 ...

Introducing the Ark, the world’s first IP67 waterproof portable power station that boasts an impressive 400W solar charging capability, 1800W output, 1500Wh capacity, and a quick 2-hour recharge time.