All in one Bluetooth Adapter FM Transmitter Music Player Charger

Features:
1, Bluetooth 5.3 Adaptor, Hands-free Calling
2, FM Radio Transmitter
3, USB disk Music Player
4, 2 Ports 3.0 Quick Charger
5, Universal Compatible with 12V-24V Vehicles
6, 2 Years Warranty

2 ports usb car charger 3.0 charger: support charging two devices simultaneously, one port is quick charge 3.0 port. this fast charge port is also compatible with: 2.0, hua wei fcp, type-c and samsung. the charger efficiency is more than 80%.
Answer calls hands-free: high-performance microphone with noise suppression cvc technology, grants you crystal clear call. answering/redialing/dismissing or ending call just simply click a button.
Immerse in hi-fi music: insert a usb flash driver which contains mp3 files into the right usb port and enjoy it. if that's not enough, it can also support your playlist with no distortions of the original signal from your mp3, iphone, android smartphones and more bluetooth enabled devices.
Wide compatibility: bluetooth car fm transmitter can be paired as a hands-free kit with all bluetooth enabled devices, such as iphone, ipad, ipod, tablet, samsung, htc, sony and other andriod smartphones.
Multi-safety protection: comes with built-in over-current protection, over-voltage protection, intelligent temperature control, short circuit protection.

Tips:
Find out a blank FM frequency locally which is slight rustling sound instead of inserting it into the car lighter.

Insert it into the car lighter, tune the transmitter's frequency to the same FM frequency as the car radio, at this moment, your car radio will be quiet without static sound(changing it if it is static).

Insert a Micro USB Flash Driver or pair this Bluetooth FM transmitter with your digital device to enjoy music playback or hands-free conversation.

How to Adjust Volume?
The volume of car radio could reach 1/3 or 1/2, but never exceed 2/3.
The volume of transmitter could reach 2/3 or 4/5, but try not to reach the most volume.
The volume of cell phone could reach 2/3 or 4/5, but try not to reach the most volume.