Yandex Drops Earbuds Under X-Ray Microtomography: Detailed Internal Analysis of First AI-Powered TWS Headphones
Engineers used non-destructive X-ray microtomography to examine Yandex Drops, the company's first TWS earbuds featuring the Alice AI voice assistant. The scan revealed an eight-layer HDI PCB, three microphones per earbud arranged in a dual feedforward plus feedback ANC configuration, an 11 mm driver, and a QFN-packaged SoC with NPU. No hardware disconnect point was identified in the microphone signal path within visually accessible traces, connectors, and vias. Battery dimensions, coil windings in the case, and internal flex routing were measured directly from calibrated voxel data. The study also confirmed contact-based charging via spring-loaded claw contacts and a Hall-effect sensor in the case lid. The work demonstrates how industrial micro-CT can support hardware security reviews without destroying the sample.
HabrSep 25, 2026Translated from Russian