<p>➀ xMEMS has developed a micromachined silicon earbud loudspeaker that operates without a booster amplifier; </p><p>➁ The speaker, known as Lassen, runs on a standard 1Vrms audio signal and delivers up to 115dB SPL across 6kHz to 20kHz; </p><p>➂ It is designed for two-way 'true wireless stereo' (TWS) earbuds and is available for mass production in September 2025.</p>