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Home ›› Manufacturing ›› Mfg Electronics ›› Marshall's Stockwell III Speaker Doubles Battery Life

Marshall's Stockwell III Speaker Doubles Battery Life

Marshall's new Stockwell III portable speaker boasts over 40 hours of battery life, doubling the previous model's capacity. It features True Stereophonic technology for 360-degree audio and a modular design for user-replaceable components.

iG
iGEN Editorial
June 9, 2026
Marshall's Stockwell III Speaker Doubles Battery Life

Marshall has unveiled the Stockwell III, a portable Bluetooth speaker that significantly enhances its predecessor's capabilities. The standout feature is its battery life, which has doubled from 20 hours to over 40 hours per charge, allowing for extended use without frequent recharging. This improvement is a major selling point for consumers seeking long-lasting audio devices.

Enhanced Audio Technology

The Stockwell III incorporates Marshall's proprietary True Stereophonic technology, delivering 360-degree audio regardless of the speaker's placement. This feature ensures a balanced sound experience, with a dynamic loudness algorithm that adjusts bass, mids, and treble at any volume. At lower volumes, the bass and treble are heightened, providing a richer sound quality.

Design and Durability

The speaker's design pays homage to Marshall's iconic guitar amps, featuring a PU leather carry strap and velvet lining. A brass control panel allows users to skip tracks, access presets, and make audio adjustments easily. The Stockwell III is also built to withstand various environments, boasting an IP55 dust and water resistance rating.

Modular and Lightweight

One of the key innovations in the Stockwell III is its modular design. Many components, including the strap, battery, front and back grille, and silicone sleeve, are user-replaceable. This design choice not only extends the product's lifespan but also aligns with sustainable manufacturing practices by reducing waste. Weighing under three pounds, the Stockwell III is incredibly portable, making it ideal for on-the-go use.

Market Availability

The Stockwell III is currently available in two colorways directly from Marshall and will be available at major retailers starting August 4. Priced at $250, it offers a compelling option for consumers looking for a durable and long-lasting portable speaker.

Feature Stockwell III
Battery Life Over 40 hours
Audio Technology True Stereophonic, Dynamic Loudness
Design Guitar amp style, IP55 rating
Weight Under 3 pounds
Price $250

The introduction of the Stockwell III reflects Marshall's commitment to enhancing product longevity and user experience through innovative design and technology. For manufacturing executives and procurement professionals, this product exemplifies the potential benefits of modular design and extended battery life in consumer electronics, offering insights into future trends in product development and sustainability.


Sources: Engadget – Main Feed

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