SUPERIOR SIGNATURE SOUND: Delivers sound that is rich, clear and loud, like the artist intended. Experience absolute 360° sound with True Stereophonic, a unique form of multi-directional sound from Marshall where every spot is a sweet spot. 30 plus HOURS OF PORTABLE PLAYTIME: Offers 30 plus hours of portable playtime on a single charge. Its compact size, rugged durability and reliable playtime make it perfect to take with you. When youre out of battery, Emberton II wont keep you waiting long plug in your speaker and return to full battery in 3 hours.