Introduction
The LENCENT T75 Bluetooth 5.0 FM Transmitter is designed to enhance your in-car audio experience, offering seamless music streaming, hands-free calling, and fast charging capabilities. This manual provides detailed instructions for setup, operation, and maintenance to ensure optimal performance.
Safety Information
- Ensure the device is securely plugged into the car's cigarette lighter socket.
- Do not expose to extreme temperatures or moisture.
- Keep out of reach of children.
- Avoid disassembling or modifying the device.
Package Contents
- LENCENT T75 Bluetooth FM Transmitter
- AUX Cable
- User Manual
Product Overview
The LENCENT T75 features a digital display, two USB charging ports (one QC3.0, one standard 5V/1A), an AUX input, and control buttons for frequency adjustment, call management, and lighting.
An overview video demonstrating the features and usage of the LENCENT T75 Bluetooth FM Transmitter, including charging, AUX connection, Bluetooth pairing, frequency adjustment, and deep bass mode.
Setup Instructions
- Power On: Insert the FM transmitter into your car's cigarette lighter socket. The device will power on automatically.
- Tune FM Frequency:
- Find an empty FM frequency on your car radio (one with static, no active station).
- Adjust the FM transmitter to match this frequency. Use the rotary knob or 'CH' button to change the frequency.
Adjust the FM frequency on the transmitter to match an unused frequency on your car radio for clear audio transmission. - Bluetooth Pairing:
- Enable Bluetooth on your smartphone.
- Search for "T75" in your phone's Bluetooth settings.
- Select and pair with the device.
Pair your smartphone via Bluetooth to the transmitter for wireless audio streaming and hands-free calls.
The device features a Bluetooth 5.0 chip for stable and efficient wireless connectivity. - AUX Connection (Optional):
- Connect your audio device to the transmitter's AUX port using the provided AUX cable.
For direct audio input, connect your device to the AUX port using the supplied cable. - USB Disk Music (Optional):
- Insert a USB flash drive (up to 32GB) containing MP3, WMA, APE, FLAC, WAV music files into the 5V/1A USB port.
Play music directly from a USB flash drive by inserting it into the designated USB port.
Operating Instructions
- Music Streaming:
- Bluetooth: Once paired, play music from your phone.
- USB Disk: Insert USB drive, music will play automatically.
- AUX: Connect device via AUX, play music from device.
- Deep Bass Mode: Press the 'b' button to activate/deactivate the deep bass function.
Activate the deep bass function with a single press of the 'b' button for a richer audio experience. 
Toggle between standard and deep bass music modes for varied audio output. - Hands-Free Calling:
- Answer Call: Press the phone icon button.
- Hang Up: Press the phone icon button again.
- Reject Call: Press and hold the phone icon button.
- Redial Last Number: Double-press the phone icon button.
Manage calls safely with the dedicated hands-free buttons. The dual microphones with CVC8.0 noise reduction ensure clear communication. - Voice Assistant:
- Activate Siri, Google Assistant, or Bixby by pressing the voice assistant button.
Access your preferred voice assistant (Siri, Bixby, OK Google) for navigation, messaging, and calls, keeping your focus on the road. - Charging Devices:
- Use the QC3.0 port for fast charging compatible devices (up to 18W).
- Use the 5V/1A port for standard charging or USB music playback.
Charge your devices rapidly using the QC3.0 port or standard speed with the 5V/1A port. - LED Lighting:
- Cycle through 9 different LED colors (red, blue, green, yellow, purple, cyan, white, rainbow, rainbow stream) or turn off the light.
- Use the light button (sun icon) to change modes.
Customize your car's ambiance with 9 LED color options, including dynamic rainbow modes, or turn the lights off.
Maintenance
- Keep the device clean and dry.
- Avoid using harsh chemicals or abrasive cleaners for cleaning.
- Ensure proper ventilation around the device to prevent overheating.
- Store in a cool, dry place when not in use.
Troubleshooting
- No Power:
- Check the car's cigarette lighter socket. Ensure the transmitter is firmly connected. Verify the car's power outlet is functioning.
- Static/Poor Audio Quality:
- Find a clearer, unused FM frequency on your car radio and transmitter. Adjust the volume on both your car radio and the transmitter. Ensure there is no interference from other electronic devices.
- Bluetooth Not Connecting:
- Ensure Bluetooth is enabled on your phone and the transmitter is in pairing mode. Forget the device on your phone's Bluetooth settings and try pairing again. Restart both the phone and the transmitter.
- Charging Not Working:
- Check the USB cable connection. Ensure your device is compatible with QC3.0 for fast charging. Try a different USB cable or port.
Specifications
| Feature | Specification |
|---|---|
| Brand | LENCENT |
| Model Name | T75 |
| Bluetooth Version | V5.0 |
| Input Voltage | 12-24V |
| Out Power | 18W (QC3.0) |
| Item Type | FM Transmitter |
| Special Features | Hands-free, Hands-free Phone Call, Noise Cancellation, Fast Charge |
| Material | ABS |
| Item Weight | 87.5g |
| Item Size | 10.6cm * 6.5cm * 4.5cm |
| Certification | CE, FCC, RoHS |
| Music Format | MP3, WMA, APE, FLAC, WAV |
| USB (max. capacity) | 32GB |
| Frequency Stability | ±10ppm |
User Tips
- For the best audio quality, always try to find an FM frequency that is completely clear of any radio stations.
- When using the voice assistant, speak clearly and directly towards the device's microphone for optimal recognition.
- To prevent battery drain on your car, unplug the FM transmitter when the car is turned off for extended periods.
Warranty and Support
For warranty information and technical support, please refer to the manufacturer's official website or contact their customer service.
