. [Clearer Calls Based on Enhanced Dual Mics] The two 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 driving

2. [48W PD&QC 3.0 Fast Charging]
JOYROOM Bluetooth FM Transmitter is equipped with PD 30W Type-C and QC3.0 18W USB charging ports, 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 market

3. [Upgraded Bluetooth 5.3]
The 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 there is no need to repeat pairing after the first successful pairing with your device

4. [Hi-Fi Deep Bass & AUX Mode]
Just press the button “b,” and you will enjoy powerful deep bass and immersive stereo sound. The high-fidelity Hi-Fi sound quality will also make the music more dynamic and pleasing to the ear, taking your passion for music to a new level. In addition, this Bluetooth car adapter supports AUX connection and USB stick connection, so you can connect your FM transmitter to your car via the included AUX cable and enjoy the CD-like sound quality.

5. [Safe Protections and Universal Bluetooth Car Adapter ]
Passed CE, FCC, and RoHS certifications. Multiple protections for overcurrent, overvoltage, overload, overheating, and short circuits Compatible with most smartphones and Bluetooth-enabled devices. Such as an iPhone, iPad Pro, Samsung, Google/MP3 player, or Android phone. Fit a 12–24V car cigarette lighter (car, suv, truck, etc.)

6. [How to connect for the best sound]
1. Tune the car radio to an UNUSED station (support 88.1–107.9 MHz) 2. Pair an FM transmitter with car radio channel 3. Pair your phone with an FM transmitter via Bluetooth.