OPTIMIZED FOR LOUD: . Middleton utilizes True Stereophonic, a unique form of multi-directional stereo sound from Marshall to deliver the ultimate immersive experience wherever you roam; ULTIMATE PORTABILITY, RAIN OR SHINE: Equally at home in the festival mud or on your polished sideboard thanks to its iconic yet durable design. With a rugged IP67 dust- and water-resistant build, a bit of rain and dirt won t get under its skin 20+ HOURS OF PORTABLE PLAYTIME: 20+ hours of portable playtime on a single charge. When you do need to charge, plug in your speaker and you ll be back to full battery in only 4.5 hours the next encore is never far away. STACK MODE: Connect Middleton to other Middleton speakers and amplify the sound with a multi-speaker Stack session. Stack them up or spread them out for a colossal sound that fits whatever space you re in. SUPERIOR, HASSLE-FREE LISTENING: Drop straight into your music with no fuss just pair and play. Nothing stands between you and the music you want to hear. If you want a more customised sound, adjust the bass and treble on the top of the speaker, or download the app to control the sound wirelessly Model: 1006262; Battery Average Life: 20.0 hours