3-in-1 - QC3.0 and PD 3.0 Type-C USB Port - Dual USB ports and one Type-C interface, support fast charging, can charge 3 devices at the same time, and provide better charging performance. Use devices that support QC 3.0 and PD 3.0 to activate the fast charging function. Noise Reduction - Bluetooth V5.3 Widely Compatible: The Bluetooth V5.3 chip establishes an ultra-secure connection between your phone and the car FM transmitter with Bluetooth adapter. Faster torque and more stable sound than Bluetooth v4.2 to avoid unstable connection. Widely compatible with any Bluetooth-enabled device and cars with 12-24V voltage High-fidelity music show, cool gradient lighting - Heavy bass amplifier: With anti-interference performance and CVC technology, you can enjoy wonderful heavy bass music by just pressing the B button. Besides, the lights will dance with such loud and powerful music. The gradient lights will create a party atmosphere for you. More stable hands-free calls: Bluetooth provides a stable connection, while CVC noise reduction brings an excellent hands-free calling experience.