Product information2022 JOYROOM Bluetooth 5.3 FM Transmitter-Let your choice be easier!Choosing the right Bluetooth Adapter Car - 2022 Newest Joyroom aux bluetooth adapter is an ideal choice!Features include: 2 MICs for clearer hands-free calls and Bluetooth 5.3 connectivity 48W Rapid Lading & Aux, Bluetooth, USB Music in HiFi Deep Bass Sound & CVC 8.0 Noise Reduction Voltage Detection and Larger LED Screen Wide Compatibility & 9 Color LightsThree ways to combine your car radio with the FM transmitter with the Joyroom transmitter Method 1. Wireless connectionPlug JR-CL17 into the cigarette lighter socket in the car to connect the power.If you want to adjust the frequency, long press the button, adjust the FM transmitter to the same frequency as the car radio.Turn on your phone's Bluetooth function, search for the name "CL17" and pair it.Method 2. AUX portPlug JR-CL17 into the cigarette lighter socket in the car to connect the power.Turn on your phone's Bluetooth function, search for the name "CL17" and pair it.Plug one end of the Aux cable into the CL17 Aux port and the other into the car auxiliary port.Method 3. USB flash drive connectionPlug JR-CL17 into the cigarette lighter socket in the car to connect the power.If you want to adjust the frequency, long press the button, adjust the FM transmitter to the same frequency as the car radio.Insert the USB flash drive into the USB music port of the FM transmitter.A notice:Please try another frequency and repeat the above steps if the radio experiences severe static interference.Make sure the FM frequency you selected is blank.Empty frequency refers to frequenciesno voice or music, just noise.Make sure you have set the frequency of the FM transmitter exactly like your car radio.Make sure that the device is firmly plugged into the cigarette lighter.If something slips out it can also cause noise.The FM broadcast signal may be affected by driving through highway, tunnel and other place where the signal is weak.While driving: When you arrive in a new city, please adjust the FM frequency to an empty frequency that matches the vehicle's audio frequency, after the connection is successfully established, you can use the device again;If you have any problems, defects or damage to the product, please contact the seller immediately and we will solve the problem for you as soon as possible.Product Specification Brand: Joyroom Model: JR-Cl17 Btversion: v5.3 Input: DC12-24V QC3.0 Output: 5V=3A,9V=2A,12V=1.5A(Max 18W) PD output: 5V=3A,9V=3A,12V=2.5A,15V=2A,20V=1.5A(Max 30W) PPS:3.3-11V3A,3.3V-16V2A Total power: 48W