Marshall's Stockwell III Bucks Industry Trend With User-Replaceable Battery

Marshall's Stockwell III ships with a swappable battery and 40-hour runtime—double its predecessor. At $249.99, it reverses the industry norm: Sony, JBL, and Bose seal their speakers to minimize servicing. The modular design lets users replace degraded cells without discarding the whole device, extending lifespan and reducing e-waste.