StreamUnlimited Brings High-Resolution Wi-Fi Audio to Headphones

StreamUnlimited, the Vienna-based streaming technology specialist, is targeting the headphone market with a new Wi-Fi-based solution that promises to overcome Bluetooth audio's long-standing limitations. With wireless convenience now an expectation rather than a luxury, the company says its latest innovation offers the bandwidth and stability needed to support high-resolution playback without compromise.

This isn't the first we've seen of Wi-Fi headphones. Indeed, we reviewed the HED Unity headset back in 2023, where Simon Lucas said it was "the best-sounding wireless headphone design that I have heard to date" but also noting that Untiy was "fearsomely expensive," and it had some teething issues.

At the heart of this development is StreamUnlimited’s Stream210 module, designed to enable next-generation wireless headphones that can stream audio via dual-band Wi-Fi 6 while retaining Bluetooth 5.3 with LE Audio for fallback and compatibility. Unlike traditional Bluetooth implementations, which are limited by low bitrates, short range, and interruptions from incoming calls and notifications, Stream210 enables direct playback of lossless and high-resolution audio up to 24-bit/192kHz — untethered from the source device.

Christoph Apel, Director of Systems at StreamUnlimited, commented:

We are proud to showcase our innovative Wi-Fi solutions tailored to high-end and mainstream headphones, redefining the wireless listening experience. This approach sets new standards for audiophiles seeking seamless and uninterrupted sound.

The Stream210 module features a dual-core ARM Cortex-A32 processor clocked at 1.3GHz, paired with 2Gb of onboard memory. This allows for efficient audio processing with low power consumption, which is critical for portable, battery-powered devices. The module supports using either an integrated audio CODEC and EQ for cost-sensitive applications or an external high-performance DAC for premium designs.

Manufacturers also gain access to StreamSDK, a comprehensive software stack enabling support for streaming platforms like Spotify Connect, AirPlay, Google Cast, TIDAL, and TIDAL HiRes FLAC, as well as integration with voice assistants, smart home protocols, and multiple audio codecs. The SDK positions Stream210 as a drop-in solution for direct-to-cloud headphone streaming — a category that has remained largely untapped due to previous technological limitations.

While initially targeted at wireless headphone developers, the Stream210 platform is adaptable for digital radios, wireless speakers, audio receivers, smart home systems, and even industrial IoT applications — highlighting StreamUnlimited’s ongoing role as a versatile enabler in connected audio.

StreamUnlimited will exhibit at High End Munich 2025, where the company will showcase its Stream210 module and other innovations. You’ll find them in Hall 1, Stand F02, and we look forward to seeing how this technology might reshape the future of wireless hi-fi.

For more information visit StreamUnlimited