High-speed and stable transmission: Supports Bluetooth 5.0 technology, providing clear and stable sound quality. Suitable for devices like TVs, computers, and mobile phones, ensuring smooth wireless audio transmission. Plug-and-play design: No driver installation required; simply plug and play with a USB plug for quick and easy connection to wireless headphones or speakers, providing a user-friendly experience. Versatile applications: This adapter not only supports Bluetooth audio reception but also functions as a transmitter, enabling wireless connections between devices like TVs and computers and Bluetooth speakers or headphones, enhancing the wireless audio capabilities of these devices. User feedback indicates that this USB Bluetooth 5.0 adapter recognizes the device instantly upon plugging it in, requiring no driver installation, making plug-and-play operation a worry-free experience. It not only supports connecting Bluetooth headphones to listen to music, but also allows you to connect your speakers wirelessly, even playing music from your laptop to the TV in the living room, with seamless audio synchronization. Furthermore, its compact size makes it easy to carry, and its stable connection persists even when walking around corners or moving far away, making it ideal for travel. Receive/Transmit: A red light indicates transmit mode, while a blue light indicates receive mode.