"Wireless Bluetooth 5.0 Audio Adapter": The Bluetooth receiver adopts 5.0 technology, providing more stable, faster transmission, and lower power consumption. It is an ideal adapter to add wireless Bluetooth functionality to your existing speaker system and enjoy a wireless technology life . "Multiple Compatibility": The Bluetooth stereo receiver can be used with any stereo system that supports AUX or 3.5mm RCA audio, and can also be used in car audio systems. "Easy to use": only three simple steps to connect; supports TF card playback, plug and play, no driver required, no transmission delay. The hifi Bluetooth receiver provides two sound effect options: bass mode and regular mode. You can change different modes by pressing buttons as needed. "Stable signal, automatic reconnection": The Bluetooth audio receiver provides a stable and strong wireless connection within a 10m range, automatically detecting the device and connecting to it within range, making it an ideal Bluetooth high-fidelity adapter for your home or car . "Small and Portable": This Bluetooth AUX adapter is small and lightweight, making it very easy to carry. You can take it anywhere and enjoy music wirelessly!