- Versatile 2-in-1 Functionality: This Bluetooth adapter serves as both a transmitter and a receiver. Easily switch between TX mode (red light) to transmit audio and RX mode (blue light) to receive audio, giving you flexibility for various audio needs. - Bluetooth 5.0 Technology: Upgrade your audio experience by converting any AUX or USB port into Bluetooth. Connect to your car or home audio system without Bluetooth capabilities, allowing you to stream your favorite music effortlessly and enabling hands-free calling. - Easy Plug and Play Installation: No complicated setup is required. Simply plug the adapter into your USB or 3.5 mm AUX port, and it is ready to use without any driver installation or batteries. After the initial pairing, it automatically reconnects to the last paired device whenever you start your car. - Wide Compatibility: This Bluetooth 5.0 adapter is compatible with a variety of devices, including laptops, PCs, headsets, TVs, speakers, smartphones, and tablets. Enjoy seamless audio streaming across different platforms. - Practical Use Scenarios: - Use it in your car to stream music from your smartphone while enjoying hands-free calls. - Connect it to your home audio system to enhance your music experience without needing an upgrade. - Pair it with your laptop or TV for wireless audio streaming during presentations or movie nights. This Bluetooth adapter is designed for those seeking an easy and effective way to enhance their audio systems, combining modern technology with user-friendly features.