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 driving
2. [48W PD&QC 3.0 Fast Charging] BT 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 super fast charging and ipad pro Android device fast charging. This 48W high power car adapter charges faster than 99% of BT car adapters on the market
3. [Upgraded BT 5.0] FM transmitter uses the latest BT 5.3 technology, optimizing the transmission delay and connection defect problems of the old BT 5.0. BT 5.0 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 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 BT 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 & Universal BT Car Adapter ]Passed CE, FCC and RoHS certifications. Multiple protections for overcurrent, overvoltage, overload, overheat and short circuit. most smartphones and BT -enabled devices. Such as iPad Pro/MP3 player/Android phone. Fit 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 FM transmitter with car radio channel 3.Pair your phone with FM transmitter via BT . Tip: UNUSED STATION/BLANK CHANNEL refers to station with no music or vocals , just rustling

How to avoid static noise to ensure the best sound quality?
Step 1: Make sure you first tune your car radio frequency to a station that is not in use, this blank station will have a slight rustling noise
Step 2: Tune your car BT adapter to the same blank station as your car radio to ensure the best sound quality

Three ways to pair your car radio with FM transmitter

Way 1: Wireless BT Connection
Step 1. Tune the car radio to an UNUSED STATION/BLANK CHANNEL (Support 88.1-107.9 Mhz
Step 2. Long press the knob button to enter FM mode, Pair FM transmitter with car radio channel
Step 3. Pair your phone with FM transmitter via BT

Way 2: AUX ConnectionLossless sound quality
Step 1. Pair your phone with FM transmitter via BT
Step 2. Connect FM transmitter and car AUX port with AUX cable

Way 3: U disk Connection
Step 1. Tune the car radio to an UNUSED STATION/BLANK CHANNEL (Support 88.1-107.9 Mhz)
Step 2. Long press the knob button to enter FM mode, Pair FM transmitter with car radio channel
Step 3. Pair your phone with FM transmitter via BT
Step 4. Insert the USB flash drive into the USB music port of the FM transmitter

Specification
Model:JR-CL17
BTVersion:V5.3
Input:DC12-24V
Size: 1.9*1.7*2.7inch
QC3.0 output:5V=3A,9V=2A,12V=1.5A(Max 18W)