Marketed as offering “an outstanding personal audio experience with crystal-clear sound, great battery life and effortless ease of use at an affordable price point”, we have no reason to doubt Sennheiser on this one.

The CX True Wireless features Sennheiser's proprietary TrueResponse transducer, designed and manufactured at the company's headquarters in Germany. Developed for Sennheiser's premium earphones, this bespoke acoustic system is said to “deliver high-fidelity stereo sound with deep basses, natural mids and clear, detailed treble.”

The Smart Control app controls the smarts of the earphones with a built-in EQ which allows for custom tailoring of the listening experience, whether notching up the intensity of the music with the Bass Boost preset, relaxing with a podcast, or enhancing audio for a phone call.

Connectivity includes Bluetooth 5.2 compatibility and SBC, AAC, and aptX audio codec support for high-quality wireless sound and effortless management of Bluetooth connections via the Smart Control app.

Anton Zgurskiy, Product Manager at Sennheiser, told StereoNET:

The CX True Wireless delivers truly superior sound at an accessible price point. Featuring state-of-the-art technology and offering proven ergonomics, the earbuds have been developed according to user comfort studies. They also offer an outstanding personal audio experience that anyone can enjoy anywhere and every day.

Battery life is reported as 9 hours and up to 27 hours when charging on the go with the supplied case. The CX True Wireless will keep listeners productive or entertained throughout the day – and comes with all-day comfort to match. For a perfect fit in the ear canal that keeps the earbuds securely in place and effectively attenuates outside noise, ear adapters are provided in four sizes. The earphones' IPX4-rated splash resistance offers additional peace of mind.

As we've come to expect from premium' phones now, the CX True Wireless features an intuitive touch interface. Via a firmware update, the user can make the touch controls customisable, letting the listener define their preferred way of handling audio, calls or accessing voice assistants such as Google Assistant or Siri. The charging case is similarly intuitive, with the earbuds automatically powering on when taken out of the case and powering down to save energy when replaced.

Finally, there are dual microphones on each earphone for better voice pick-up; the CX True Wireless optimises speech for calls and voice assistant access, even when using a single earbud. A convenient 'role switching' feature allows either earbud to be used on its own. The Sidetone feature, which makes phone calls more comfortable by letting users hear their own voice during calls, is adjustable via a slider setting in the Smart Control app.

The Sennheiser CX True Wireless is priced at S$199 and will be available starting July 8, 2021 in matte black or matte white.