Overwhelmed by the expansive selection of portable bluetooth speakers? CUBEDGE’s Kickstarter-launched EDGE.sound blasts out huge sound for over 10 hours on battery, all in a backpack-friendly size; in fact, it’s likely to be the loudest small bluetooth speaker – to give you an idea, it’s rated at 95db vs 85dB for the Jambox. The slick, minimal rubberized casing is complemented by an aluminium speaker grill which also hides a built-in mic for chatting via speakerphone.

Head to Amazon to find out more – $90