The Q18S Car Bluetooth Player User Manual explains Bluetooth pairing, USB/TF music playback, FM transmission, charging and power‑off memory features.
The Q18S is a car FM transmitter with MP3 playback that uses a dedicated Bluetooth 5.0 module and a built‑in MP3/WMA decoder. It can stream music from a USB drive or TF card to the car audio system via FM, display caller ID, and support hands‑free calls. The device also provides dual USB charging ports and remembers the last FM frequency and track after power loss.
Operation includes pairing the phone to the Bluetooth name "BT-CAR Kit", selecting an FM frequency (87.5‑108.0 MHz) by long‑pressing the CH button, and controlling volume with an encoder or the car’s volume knob. Technical parameters such as working voltage (12‑24 V), USB output (5 V 3.1 A/1 A), and Bluetooth range (5 m) are listed in the manual, along with safety precautions. This manual is written in Chinese.
| Working voltage | 12‑24 V |
|---|---|
| Voltage limit | 9‑30 V |
| USB output | 5 V 3.1 A / 5 V 1 A |
| Play format | MP3, WMA |
| Bluetooth version | 5.0 |
| FM frequency range | 87.5‑108.0 MHz |
Search for the Bluetooth name "BT-CAR Kit", select it and pair; then match the FM frequency.
Insert the USB drive or TF card; the car audio will automatically start playing the music stored on it.
Long‑press the CH button for 3 seconds to activate frequency selection, then use the encoder to choose the desired frequency.
Yes, after power‑off it automatically reconnects Bluetooth or recalls the last FM frequency and the previously playing track.