This grey Bang & Olufsen Beosound Explore portable speaker is portable, tough and durable. It has a hardened, scratch-resistant and fully dust and waterproof aluminium shell and a tough rubberised base. It features a waterproof strap and carabiner, precision-cut grill for True360 sound, dual 1.8 full-range drivers, up to 27 hours of playtime, USB-C port for charging and streaming, and five buttons to the top. Plain speaking - this Bang & Olufsen speaker sounds just as good as it looks.