"We may also link Personal Data collected from any of our Sites, Applications, products, or services, including where those data are collected from different devices. ... whether you access our services from multiple devices, and other browsing behavior and actions you take on our services... displaying advertisements that are selected based on Personal Data obtained or inferred over time from an individual's activities across businesses or distinctly-branded websites, applications, or other services."
Anker links user data across its multiple brands (Anker, eufy, Soundcore, Nebula, etc.), tracks activity across devices, and engages in cross-context behavioral advertising across different websites and services.