Marshall Stockwell III Black Portable Bluetooth Speaker

The Marshall Stockwell III is a portable Bluetooth speaker that delivers powerful True Stereophonic 360° sound in a compact, iconic Marshall design. Wrapped in black pebble-textured vinyl with a red-lined leather carrying strap and signature brass panel controls, it brings the look and feel of a classic Marshall amplifier wherever you take it.

The speaker features three drivers — one 3-inch woofer and two 1.75-inch wide-band drivers — powered by a total of 127 watts across three Class D amplifiers, with a frequency range of 54–20,000 Hz. True Stereophonic technology delivers consistent, full-quality sound regardless of listening position. Dedicated bass and treble knobs on the top panel let you dial in your preferred EQ profile, while Dynamic Loudness ensures balanced sound at any volume level. Bluetooth 5.3 with multipoint connectivity allows seamless switching between two paired devices, and Auracast support enables audio sharing to compatible devices. A 3.5 mm AUX input and USB-C port are also included for wired connectivity. The USB-C port doubles as a charging bank to power your phone or other devices on the go.

The rechargeable lithium-ion battery delivers 40+ hours of playtime on a single charge, with a quick-charge feature that provides 7 hours of playback from just 20 minutes of charging using a 30W USB-C PD charger. Full recharge takes under 3 hours. The battery is consumer-replaceable, extending the product's lifespan. Rated IP55 for dust and water resistance, the Stockwell III handles everyday knocks, splashes, and outdoor use without hesitation. The speaker measures 180 × 162 × 74 mm and weighs 1.3 kg (2.9 lbs). Designed and engineered in Sweden, made in Thailand. Compatible with the Marshall Bluetooth app. Includes speaker, carrying strap, USB-C to USB-C charging cable, and quick start guide.