- Marshall's Signature Sound serves up perfectly balanced audio with plenty of bass- Every spot is the sweet spot with a 360° True Stereophonic design that throws out sound in every direction- Take your tunes anywhere with a whopping up to 32 hours of portable playtime- It's IP67 dust- and waterproof, so you can bring it along to the beach- Wirelessly connect to other Auracast speakers and fill your space with sound- Chat away on phone calls handsfree with the built-in microphone