Enjoy Bang & Olufsen Signature Sound when you’re on the move with the power of 2x30 watts contained in a sleek, small speaker Waterproof speaker: Share your soundtrack on the go, with a durable and lightweight speaker designed for life on the road, at home or by the pool Listen longer: Improved battery power so you can enjoy music and speakerphone calls for up to 18 hours at increased volume, longer on low settings. dust and waterproof - IP67 certified Impervious to dust or sand particles and protected against immersion in water for up to 1 metre of depth up to 30 minutes Sleek yet strong: Designed to travel, the tough aluminium dome is dust- and water-resistant making in an elegantly self-contained portable speaker Alexa Speaker: An intuitive user interface combined with built-in voice control and Amazon Alexa means you’re always in control