Car Bluetooth FM Transmitter: It has a large display that provides a wider visual interface for more information, such as incoming phone number, track name, FM frequency, battery voltage, Bluetooth connected devices, etc. Better Hands-Free Calling: With a stronger microphone, it greatly amplifies sound reception and enhances sound quality, bringing a higher level of experience. Treble and Bass Music Streaming: You can play music directly from the car radio via Bluetooth/microSD card/Aux output, enjoy free switching between treble and bass modes, the color spectrum is automatically synced with your music. [QC3.0 fast charging]: Equipped with QC3.0 charging interface, it provides high-speed charging for drivers and passengers, and the charging time is 4 times faster than traditional charging. Bring Voice Services Into Your Car: You can keep your eyes on the road by using Siri or Google Assistant to make calls, send text messages, or get driving directions.