If you want to use your earphones without worry at the gym and wash them off afterward, ensure they have at least an IPX7 rating. These are the best completely waterproof headphones we've tested.

The Infineon AIROC-Wi-Fi-Bluetooth-STM32 Expansion Pack is an extension of the CMSIS-Pack standard established by Arm to support Wi-Fi and BLE application on STM32 MCUs with Infineon Wireless Combo ...