Weighing in at a taut 3kg, The Kilburn is a lightweight piece of vintage styled engineering. Setting the bar as one of the loudest speakers in its class. The Kilburn is a compact stout-hearted hero with a well-balanced audio which boasts a clear midrange and extended highs for a sound that is both articulate and pronounced. The kilburn is a compact stout-hearted hero with a well-balanced audio which boasts a clear midrange and extended highs for a sound that is both articulate and pronounced. The analogue knobs allow you to fine tune the controls to your personal preferences while the guitar-influenced leather strap enables easy and stylish travel. Bluetooth compatibility and the 3,5mm jack input means easy connectivity, while the simple amplifier styled construction with classic marshall logo means it will look as good as it sounds. A built-in battery life of up to 20 hours means the jams will be kicking for as long as you are. Now charge it up, plug it in, crank it up, and take pride in your new piece in a long line of marshalls unwavering legacy of loud. Bluetooth compatible. 3.5mm AUX in. 2 amplifier channels. Frequency 62Hz-20000Hz. General information Size H14, W24.2, D14cm. Model number 4091591. Speaker diameter 14cm. Mains operated. Batteries required 1 x Li-Ion batteries (included) . Battery life 20 hours. Manufacturers 2 year guarantee.