Marshall Kilburn III Portable Bluetooth Speaker — Black & Brass

The Marshall Kilburn III is a portable Bluetooth speaker in a black and brass finish with a carrying strap and tactile controls for volume, bass and treble. Its rechargeable battery provides more than 50 hours of playtime under the manufacturer’s test conditions, with actual endurance dependent on volume and use. One four-inch woofer and two two-inch full-range drivers produce Marshall’s True Stereophonic sound presentation. The IP54 rating provides protection against dust and splashes, not immersion in water. Bluetooth 5.3 and a 3.5 mm auxiliary input allow compatible wireless and wired sources to connect. A USB-C port handles charging and can also provide charging-bank functionality for a phone. Marshall specifies a full recharge in approximately three hours with a suitable 30 W USB-C PD charger, and up to eight hours of playtime from a twenty-minute charge under the same charging conditions. The speaker weighs 2.8 kg and works with the Marshall Bluetooth app. A mains USB charger is not included.