Stormopen OpenAir I — Open-Back Over-Ear Audiophile Wireless Headphones

The Stormopen OpenAir I Open-Back Over-Ear Audiophile Wireless Headphones bring the characteristic expansive soundstage and natural acoustic presentation of open-back headphone design to a wireless platform, enabling high-fidelity listening without cable management while preserving the acoustic transparency that open-back architecture uniquely provides. Open-back headphone design vents the rear of the driver enclosure to the external environment, eliminating the standing wave resonances that develop in sealed earcup designs and allowing the rear wave of the driver to radiate freely rather than reflecting back through the diaphragm. The result is a lower harmonic distortion profile — measured at 0.12 percent THD at 100 dB SPL and 1 kHz for the OpenAir I versus the 0.35 percent typical of sealed consumer headphones at the same level — and a perceived sound stage that extends beyond the width of the listener’s head, creating a more speaker-like spatial presentation. The 40 mm open-back drivers use a pure beryllium diaphragm at 0.025 mm thickness, the same material used in ultra-premium wired audiophile headphones at multiple times the price point. LDAC codec support at 990 kbps ensures that the driver’s resolution is fed a sufficiently high-bitrate signal. The open-back design provides no passive noise isolation, so the OpenAir I is optimized for quiet listening environments. The 1,000 mAh battery delivers 26 hours. Net weight is 270 g.