The UGREEN 35994 Bluetooth 5.3 Adapter is an essential upgrade for any computer or laptop lacking built-in Bluetooth functionality, or for those whose existing Bluetooth function is damaged. This ultra-compact USB dongle utilizes advanced Bluetooth 5.3 BR+EDR technology, ensuring faster data transfer rates and stronger connection stability. Designed for modern connectivity needs, the UGREEN 35994 supports simultaneous connections with up to five different Bluetooth devices. Whether you are pairing a keyboard, mouse, headphones, or game controller, the adapter manages multiple peripherals without interference. While audio plays from only one connected device, the robust profile support (A2DP/HSP/AVRCP/HID/HFP/DID/GAP) ensures compatibility with a wide range of Bluetooth peripherals. Beyond standard connectivity, the UGREEN 35994 includes a unique, undetectable mouse jiggler function. This feature is invaluable for remote workers and online participants, offering two modes: a Slight Jiggler Mode (moving the pointer 1-2 pixels back and forth) and a Random Jiggler Mode (irregular movement). This keeps the computer active, preventing screensavers or sleep modes during long meetings or online reading. Installation is straightforward and hassle-free. The adapter is designed for plug-and-play use on Windows systems (including Windows 11, 10, 8.1). No driver installation is required for the Bluetooth function. Furthermore, the mini design is ultra-compact, allowing it to stay plugged in without obstructing nearby USB ports. For maximum reliability, the adapter is backward compatible with older Bluetooth versions, including 5.2, 5.1, 5.0, and 4.0. It is recognized by the computer as a 'USB Composite Device,' ensuring it is seen as safe and reliable from the moment you plug it in. The UGREEN 35994 Bluetooth 5.3 Adapter is a smart, reliable solution for enhancing your workspace connectivity.