NASDAQ:CRUS 26 August 2025 - 5 January 2026

The FiiO JM21 breaks from the chunky designs of past FiiO players, offering a sleek, smartphone-like form factor. It measures about 120.7 × 68 × 13 mm and weighs only 156 g headfonia.com – roughly half the weight of FiiO’s higher-end M23 player. Reviewers note this is one of FiiO’s first truly “pocketable” DAPs in years, calling it “refreshing” in its compactness headfonia.com. The chassis uses a two-tone sky blue scheme: an aluminum alloy front frame for rigidity and a textured plastic back for grip headfonia.com stuff.tv. The build may not feel as tank-like as all-metal flagships, but it doesn’t come off cheap either – no creaks or flimsy parts after weeks of use, and the finish resists scratches and fingerprints stuff.tv. For controls, the JM21 features dedicated buttons on both sides. On the left are power and volume up/down; on the right are playback controls plus the microSD slot headfonia.com. Users report a short learning curve due to the symmetry, but once familiar, you can operate everything blindly in one hand – great for pocket use soundguys.com stuff.tv. One omission is a hardware lock slider; you must use a software setting to lock buttons when the screen is off