uStream Cube Wireless Stereo Bookshelf Speakers with HDMI ARC & Bluetooth

The uStream Cube Wireless Stereo Bookshelf Speakers with HDMI ARC & Bluetooth are designed to bring true hi-fi stereo sound into any room, without the clutter of cables or complicated setup. Each Cube is a fully active, identical speaker, and as soon as you switch them on they automatically pair with each other for instant left–right stereo. There’s no app to download, no Wi-Fi to configure, and no cable running between the two speakers — just pure, seamless audio.

Despite their compact bookshelf-friendly footprint, the Cubes produce a wide and immersive soundstage with punchy bass, smooth midrange detail and crisp, refined treble. The proprietary 4-inch magnesium-alloy driver powered by a large 20oz neodymium magnet delivers bass performance far beyond the size suggests, removing any need for a subwoofer in most rooms. This makes the uStream Cube a genuine soundbar replacement; place the speakers either side of your TV and, via HDMI ARC or aux connection, enjoy a real stereo cinema effect instead of the flat, directional sound typical of a single-bar setup.

The Cubes integrate effortlessly with modern smart homes. You can set them as the default playback device for Amazon Alexa or Google Home and enjoy true hands-free stereo with simple voice control. They also fit naturally into daily use: stream music from your phone or laptop over Bluetooth 5.3, hook them up to your TV via HDMI ARC, or connect games consoles and media players for a richer, more immersive experience.

Every detail has been considered with everyday life in mind. The mid/bass driver is protected by a child-safe dust cap that prevents dents, and the speakers come with premium touches including an aluminium remote control, multiple input options and a reassuring 2-year no-quibble warranty. Inside the box you’ll find two active speakers in a black finish, power adaptors with regional cables, an EU-UK adaptor, an aluminium remote, an RCA to 3.5mm cable and a quick start guide, so setup is effortless from the moment you open the package.

With 70W RMS of clean digital power from Texas Instruments amplification, a frequency response extending from 30Hz to 18kHz, Bluetooth 5.3 with 24/48 capability, and a signal-to-noise ratio over 75dB, the uStream Cube delivers performance that rivals far larger and more expensive hi-fi systems. Each speaker measures 150 × 200 × 180mm and weighs 3.6kg, making them equally at home on a desk, shelf or TV cabinet.

The uStream Cube proves that real stereo still matters. Compact enough for your workspace, powerful enough for your living room, and versatile enough to replace a soundbar entirely, it offers an effortless way to enjoy genuine hi-fi audio in every part of your home.