Marshall has officially launched the Stockwell III portable Bluetooth speaker — a major upgrade arriving seven years after the second-gen model — with a user-replaceable battery, 40+ hours of wireless playtimetrue stereophonic 360° soundand IP55 dust/water resistance. The new speaker is on sale now in select markets and will roll out in others this summer, with prices set at US$250, €229, ¥39,990 (Japan)and RMB 1,699 (China).
Why the 7-year gap ended now
The Stockwell III is the first major refresh of the line since the second-gen model, ending a long hiatus between generations. The extended gap allowed Marshall to redesign for modern needs: longer battery life, tougher build quality, and a focus on repairability. The replaceable battery is a standout change, letting users swap the battery instead of replacing the entire speaker and extending the product’s lifespan.
Key features and performance
The speaker delivers 40+ hours of portable playtime — roughly double the predecessor — eliminating frequent recharges for travel and outdoor use. Its true stereophonic 360° sound spreads audio evenly in all directions, ideal for gatherings and open spaces. It’s built to withstand real-world conditions with an IP55 rating that protects against dust and water spray, making it suitable for beaches, patios, and camping trips.
Power options include USB-C charging and a charge-out function that lets the speaker act as a portable power bank for phones and small devices. The unit weighs about 2.9 pounds and comes in Marshall’s classic Black & Brass and Cream finishes, keeping the brand’s signature hardware aesthetic.
Launch dates and availability by region
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United States: Launches August 4, 2026 on marshall.com in Black & Brass and Cream; retailer availability follows later.
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Europe: Available from August 18, 2026 on marshall.com; selected retailers from August 25.
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Japan: On sale from June 10, 2026 on marshall.com; nationwide authorized stores from June 26.
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China: Official release from June 10, 2026; online and offline channels rolling out.
Price by region
Prices vary slightly due to taxes and import costs; retailers may offer promotions later.
What this means for buyers
The Stockwell III delivers a significant battery upgradea repairable designand outdoor-ready durability in Marshall’s iconic style. For users who want long playtime, versatile 360° sound, and a speaker that can last years with a battery swap, the new model is a strong fit. The price positions it in the premium portable segment alongside competitors, but the replaceable battery and IP55 build add practical value that goes beyond specs.
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