Before You Buy:Make sure your computer does not already have built-in Bluetooth; if it does, disable all existing Bluetooth devices in Device Manager before inserting the adapter (refer to the product page's website details, Q&A section, or user manual for specific instructions). | Key Features:The GAROGYI USB Bluetooth Adapter features advanced Bluetooth 5.4 technology, offering faster, more stable connections with minimal sound quality loss. It supports simultaneous connections to multiple devices without interference, allowing seamless use of peripherals like keyboards. | Ease of Use:It provides plug-and-play functionality for Windows 11/10/8.1, while Windows 7 users will need to install drivers (contact customer service for the download link or visit this URL: bit.ly/4aQ1kwI for the Bluetooth driver). | Customer Support:For assistance with driver installation and product usage, consult the included user manual or contact our responsive customer service via Amazon Message for a prompt reply within 24 hours. | Please Note:This adapter is not compatible with Mac OS, Linux, car stereos, Xbox, or TVs. It does not directly support PS3, PS4, PS5, Switch, or Xbox consoles but is compatible with game controllers. Additionally, it does not support Mac OS or iPhone for Apple users.