Bluetooth Adapter for PC, USB Bluetooth 5.1 Dongle Receiver [Windows 11/10/8.1 Driver-Free, Plug & Play] llano Bluetooth Adapter for Computer, Desktop, Laptop, Keyboard, Mouse, Speakers, Printer 【Please Check Your Windows OS before Ordering】Win8.1/10/11 Driver-Free, Plug & Play. Win7 Driver-Needed(Go to the official llano website or contact customer service to get the driver and View the user manual) 【2023 Upgraded Intelligence 5.1 Chip】llano newest Bluetooth adapter uses the 5.1 chip with higher sensitivity, faster transmission, and more stable signal, which is easily backward compatible with 5.0/4.1/4.0 and never loses connection! 【Compatible with 99% of Devices】llano Bluetooth adapter can connect 7 devices at the same time, such as Bluetooth headset, speaker, keyboard, mouse, mobile phone, game controller, tablet, printer, etc, easy to connect, is ideal for leisure and entertainment/work. 【Mini Size】This compact Bluetooth 5.1 USB adapter allows you to leave it on your laptop or PC, no need to remove, won't block surrounding USB ports, easy to carry and space-saving. What’s more, comes with a lanyard, can effectively prevent the Bluetooth adapter from being lost, and it is also convenient to carry it with you.