Stable Transmission: The integrated wireless enhancing signal allows for a 20-meter barrier-free long-distance transmission connection that is steady and seamless and does not break or disconnect. Connecting multiple devices at once without lag is possible with Bluetooth BT5.4. It works with Bluetooth mouse/keyboard, Bluetooth headsets, Bluetooth audio, gamepads, printers, smartphones, and tablets. Version compatibility: Bluetooth devices 5.3, 5.2, 5.1, and 5.0 and lower are automatically backward compatible. An integrated Bluetooth 5.4 chip allows for more device connections, faster transmission rates, and more reliable transmission conditions. Plug and play, wireless life, USB Bluetooth 5.4 adapter, compatible with Windows 7/8.1/10/11, no driver needed.