Features:1. Clearer Calls Based on Enhanced Dual Mics The 2 microphones work in tandem to collect your voice from all directions, while the latest CVC 8.0 noise reduction technology blocks out more road noise, wind noise and other distractions. Thus ensuring that both you and the caller can hear very clearly. Simply press the call button and enjoy easy hands-free calling and safer driving2. 48W PDu0026QC 3.0 Fast ChargingJOYROOM Bluetooth FM Transmitter is equipped with PD 30W Type-C and QC3.0 18W USB charging port, fast charging two devices at the same time. Support Samsung super fast charging and ipad pro-iphone-Google-Moto-LG-Android device fast charging. This 48W high power car adapter charges faster than 99 of Bluetooth car adapters on the market3. Upgraded Bluetooth 5.3 JOYROOM FM transmitter uses the latest Bluetooth 5.3 technology, optimizing the transmission delay and connection defect problems of the old Bluetooth 5.1. Bluetooth 5.3 will bring you a faster, more stable and smarter connection with less sound quality loss. Uninterrupted calls and music experience. It takes only 1 second to complete pairing, and no need to repeat pairing after the first successful pairing with your device4. Hi-Fi Deep Bass u0026 AUX Mode Just press the button