JaJaBor Car FM Transmitter 3.5mm AUX Audio Receiver USB Adapter TF Card Music Car MP3 Player Handsfree Bluetooth 5.0 Car Kit Features: 1. Support wireless hands-free, built-in microphone, convenient and secure answering calls; 2.Large size LCD screen, the night is clearer, lyrics synchronous display 3. Noise handling during call CVC, wind noise suppression, full duplex call technology 4. Support mobile phone A2DP function, directly play high quality mobile music after connecting to wireless. 5. Support TF card expansion to play MP3/WMA format music. 6. Support power off memory function. Features: BT version: V 5.0 Input: 12V-24V. screen:Large LCD display. FM transmitter: 87.5-108.0 MHz frequency range. Wireless hands-free call. Streaming music from smart phone to car audio system via FM transmitting. Support TF card playing. Support AUX output to car Aux port. Package Includes: 1x Car handfree FM transmitter 1X Double sided tape 1x User Manual Car wireless player, separation design, large screen lossless sound Bluetooth 5.0 Separation desigh, heavy weight upgrade Hands free calls, safer driving plug and play, support TF card playing, TF play, no driver, plug and play Lossless sound quality, EQ sound mode Lossless decoding output, more compatible with a variety of audio modes, stereo music more shocking, driving more pleasant Power off memory play Automatically reconnects at startup, memorizes frequency, songs restart after power off, The song started playing from the beginning when the power off. If you need to remember the song stays at the point it was, please press the pause button before power off. Separate design elastic body Question and Answer Question 1: What is the FM transmitter? Answer: FM transmitter is a very small FM Radio Transmit Station with a broadcast range of <5 meters. Main function: Transmit the audio to your car FM radio via the same FM bands, Then you can hear this audio in the car speaker. Question 2: Why my car FM Transmitter function is so noisy? Answer: FM Transmitter transmits the FM band in 5 meters. We know the FM radio station is a very wide range, if we set the same band with radio, our signal will affect a lot. So we can follow the steps as below, 1. We adjust our car FM to the band without the radio station, like 108.0MHz. 2. We change our device FM band to the same band with car FM -108.0MHz. 3. We can play music via TF card or Bluetooth, check the quality of sound. Question 3: When playing music, get an incoming call, why the sound volume becomes louder or lower after answering it? Answer: Because the calling volume is controlled by the "Calls "and music volume is controlled by "Media "in your phone volume settings. So you can modify the settings on your phone to let the sound more comfortable. Question 4: Should I insert the AUX cord to the Car AUX port and set the same FM band with the car radio at the same time? Answer, Please do not do it at the same time. These are two different audio output methods when used in car audio systems. If your car has the AUX port, suggest you insert the AUX cord but not set the same FM band with the car radio. If your car does not have the AUX port, should set the same FM band with car radio but not insert the AUX cord.