The Storm A2 is a wireless over-ear headphone from OXS Audio, built with a notably long rated battery life. OXS Audio positions itself in the general consumer wireless headphone space, competing on a combination of comfort, battery endurance and price against a large field of similarly specified alternatives from better-known brands.
Key specs that matter
Rated response is 20 Hz to 20 kHz, a standard consumer window. Sensitivity is 110 dB per milliwatt, an efficient design that should reach full volume easily from a modest wireless output. Playback time is rated at 70 hours, a long figure that comfortably exceeds a typical week of daily commuting use between charges. Weight is 284 g, a moderate figure for a full-size over-ear headphone.
Sound and use context
Expect a closed, over-ear wireless character with a long battery life, suited to extended daily use - the specification here emphasises practical everyday usability over any particular claim to audiophile-grade tonal accuracy, and buyers should set expectations accordingly.
Pairing
As a wireless design it pairs directly with any Bluetooth source; the high sensitivity means even a modest wireless output drives it fully, so there should be no volume shortfall even from an older or lower-powered source device.
Alternatives
Other wireless over-ear headphones in this class typically trade some battery life for a smaller or lighter chassis, so buyers prioritising all-day comfort over multi-day battery endurance may find a lighter competing design more suitable despite the shorter runtime. The 70-hour playback figure here is at the upper end of what wireless over-ear headphones in this general price and feature class typically achieve, and it likely reflects either an unusually large internal battery or particularly efficient Bluetooth and amplifier circuitry, or some combination of both. Buyers weighing this model against better-known competing brands should factor in that OXS Audio's after-sales support network and warranty coverage may be less extensive than a larger, more established manufacturer would offer. As with most wireless headphones in this class, actual usable battery life will vary somewhat depending on volume level and whether any active noise cancelling feature is engaged throughout use. Charging speed and the presence or absence of quick-charge support are both worth confirming directly with a retailer.