3-in-1 USB-C to 3.5mm Audio Adapter, also known as a USB-C headphone and charger adapter (Model: JH-014).
It allows devices with a USB-C port to connect to standard 3.5mm audio devices like headphones or speakers.
The "3 in 1" feature indicates it likely includes a USB-C port for charging (supporting fast charging like PD quick charge up to 5V/3A) and potentially another port like a USB OTG port, alongside the 3.5mm audio jack.
It's designed to let you charge your device and use wired headphones simultaneously, addressing the lack of a 3.5mm jack in many newer devices.
This type of adapter is confirmed to work with various devices, including Samsung phones (e.g., S20, S21 FE), iPads (e.g., iPad Air 4th generation), and Google Pixel phones.