Emberton III features more bass than its predecessor. Dynamic Loudness adjusts the tonal balance as you change the volume. Discover a rich, full sound that'll never let you down. PRODUCT DETAILS * True Stereophonics- Available exclusively on Marshall products, True Stereophonic is a unique form of multi-directional sound. This is absolute 360° sound, where the music finds you. It's true, not all speakers are created equal. * 32+ Hours of Portable Playtime- That's more than a full day of listening on a single charge. Enough time to play through an entire discography. When you do run out of battery, just plug in your speaker and return to full charge in 2 hours. * Dust and Waterproof- Featuring an IP67 dust and waterproof rating, you can submerge Emberton III in 1 m (3 ft) of water for up to 30 minutes. Marshall's on the road spirit lives on in this rugged speaker design. * Built-in Microphone- Music comes first, but we know life gets busy. Emberton III comes with a built-in microphone