Intelligent Dual USB Ports & Fast Charging: Featuring 2 USB ports (PD 36W and USB A 12W), this charger allows simultaneous charging of two devices. Built-in protections include over-current, over-voltage, intelligent temperature control, and short circuit protection to ensure safe charging. Clear Music Streaming: Bluetooth 5.4 ensures a stable connection, while noise suppression (CVC) technology and echo cancellation deliver an enhanced hands-free calling experience. This Bluetooth car adapter supports Bluetooth connectivity and USB stick connection (up to 64GB). Hi-Fi Sound & Deep Bass: Press the "B" button to activate powerful bass and immersive stereo sound. High-fidelity audio enhances music dynamics and delivers a richer listening experience. Seamless Auto-Connection: After initial pairing, the car Bluetooth adapter automatically reconnects to your device when you start your vehicle. Enjoy a stable, low-latency connection with clear, high-quality audio and minimal interference. Simply select an unused FM frequency for optimal performance. Intuitive controls allow for easy adjustments while driving. Reliable Support: This product includes a 36-month warranty and lifetime customer support. If the cigarette lighter charger does not fit your vehicle or is not functioning properly, contact the seller for assistance.