Siemens Xijia's flagship Axion hearing aid for 2025 features an innovative dual band antenna design that supports both 2.4GHz Bluetooth and 900MHz induction coil frequency bands, enabling seamless switching between multiple devices such as mobile phones, televisions, and microphones. The antenna adopts a foldable FPC flexible structure, which can adapt to different ear shapes with slight deformation in the ear canal. Combined with magnetic coupling technology, the induction distance in the 900MHz frequency band reaches 3 meters, which is twice as long as traditional coils.
In compatibility testing, the antenna can connect to two Bluetooth devices simultaneously and automatically switch audio channels when a phone calls, with a switching delay as low as 8 milliseconds; When paired with a dedicated TV transmitter, the audio synchronization error is less than 20 milliseconds, solving the pain point of traditional hearing aids watching videos with "out of sync sound and picture". A certain hearing rehabilitation center has provided feedback that the patient satisfaction rate has reached 92%, and the stability of multi device connections has increased by 60% compared to previous generation products.
