Clydek Clydek-T24
Clydek FM Transmitter User Manual
Model: Clydek-T24
Brand: Clydek
Product Overview
The Clydek FM Transmitter is a versatile in-car device designed to enhance your driving experience by providing seamless audio streaming, hands-free calling, and efficient charging capabilities. It features the latest Bluetooth 5.0 technology for stable connections and high-fidelity sound. With multiple music playback options and dual USB charging ports, it offers convenience and functionality for any vehicle.

Figure 1: Clydek FM Transmitter showcasing Bluetooth 5.0 connectivity for faster pairing and a more stable connection, with a car driving on a futuristic road in the background.
Components and Controls
Familiarize yourself with the various parts and controls of your Clydek FM Transmitter:

Figure 2: Detailed diagram of the Clydek FM Transmitter's buttons and ports. This includes the Micro SD Card Port, MIC, U Disk Music & 5V/1A Charging Port, Previous song / Switch key, Display Screen, QC3.0 Charging Port, Next song/FM key, and Phone Button (answer/hang up calls, reject/redial calls, play/pause music).
- Micro SD Card Port: Insert a microSD card (up to 32GB) for music playback.
- MIC: Integrated microphone for hands-free calls.
- U Disk Music & 5V/1A Charging Port: Standard USB port for playing music from a USB drive (up to 32GB) and 5V/1A charging.
- Previous Song / Switch Key: Short press for previous song, long press to switch playback source (Bluetooth/USB/SD).
- Display Screen: Shows FM frequency and other status information.
- QC3.0 Charging Port: Quick Charge 3.0 port for fast charging compatible devices (up to 18W).
- Next Song / FM Key: Short press for next song, long press to enter FM frequency adjustment mode.
- Phone Button: Multi-function button for call management (answer/hang up/reject/redial) and music playback (play/pause).
Setup Instructions
Follow these steps to set up your Clydek FM Transmitter:
- Turn on the Car Radio: Tune your car's FM radio to a blank, unused frequency (e.g., 88.8 MHz). Choose a frequency with no static or interference.
- Plug into Car Cigarette Lighter Socket: Insert the Clydek FM Transmitter firmly into your vehicle's 12V/24V cigarette lighter socket. The device will power on and display the current FM frequency.
- Adjust Transmitter Frequency: Long press the "Next Song / FM Key" on the transmitter until the frequency display flashes. Then, use the "Previous Song / Switch Key" and "Next Song / FM Key" to adjust the transmitter's frequency to match the blank frequency you selected on your car radio.
- Bluetooth Pairing: On your mobile phone, enable Bluetooth and search for available devices. Select "BC57" (or similar model name) from the list to pair. Once connected, the display on the transmitter may show "bt" or a similar indicator.

Figure 3: Visual guide for the four-step setup process: 1. Turn on car radio to a blank channel. 2. Plug into car cigarette lighter socket. 3. Adjust transmitter frequency to match car radio. 4. Bluetooth pair with your mobile phone.
Operating Instructions
Music Playback
The Clydek FM Transmitter supports three modes for music playback:
- Bluetooth Streaming: Once paired with your phone, music played on your phone will be transmitted to your car's FM radio.
- USB Drive Playback: Insert a USB flash drive (up to 32GB) containing MP3/WMA/FLAC/APE/WAV audio files into the U Disk Music port. The device will automatically detect and play music.
- Micro SD Card Playback: Insert a microSD card (up to 32GB) with supported audio files into the Micro SD Card Port. The device will automatically detect and play music.
To switch between playback sources (Bluetooth, USB, SD card), long press the "Previous Song / Switch Key".

Figure 4: Illustration of Hi-Fi music streaming capabilities, showing playback from TF Card, USB Drive, and Bluetooth 5.0, supporting MP3, WMA, FLAC, WAV, and APE formats.
Hands-Free Calling
The built-in microphone and CVC noise suppression technology ensure clear hands-free calls. Use the Phone Button for call management:
- Answer Call: Short press the Phone Button.
- Hang Up Call: Short press the Phone Button during a call.
- Reject Call: Long press the Phone Button.
- Redial Last Number: Double press the Phone Button.

Figure 5: Visual representation of hands-free call functions, including answering, hanging up, rejecting, and redialing calls, with a phone displaying an incoming call.
Voice Assistant Activation
When your phone is connected via Bluetooth, you can activate your device's voice assistant (Siri, Google Assistant, etc.) through the transmitter:
- Activate Voice Assistant: Long press the "Phone Button" (which also serves as the music play/pause button).

Figure 6: Demonstrates how to activate Siri or other voice assistants by long-pressing the designated button on the FM transmitter when Bluetooth is connected.
Charging Functions
The transmitter is equipped with dual USB charging ports:
- QC3.0 Charging Port: Provides fast charging up to 18W for compatible devices.
- 5V/1A Charging Port: Standard charging port, also used for USB drive music playback.
You can charge two devices simultaneously while enjoying music streaming.

Figure 7: Illustrates the dual USB charging capability, highlighting the QC3.0 Quick Charge port for up to 4X faster charging and the standard 5V/1A port, with two smartphones being charged simultaneously.
Maintenance
To ensure the longevity and optimal performance of your Clydek FM Transmitter, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to wipe the device. Avoid using abrasive cleaners, solvents, or strong chemicals, as they may damage the surface or internal components.
- Storage: When not in use for extended periods, store the transmitter in a cool, dry place away from direct sunlight and extreme temperatures.
- Handling: Handle the device with care. Avoid dropping it or subjecting it to strong impacts, which could damage the internal circuitry.
- Power Source: Always ensure the device is properly inserted into a compatible 12V/24V car cigarette lighter socket.
Troubleshooting
If you encounter issues with your Clydek FM Transmitter, refer to the following common problems and their solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No power/display off | Loose connection; Car cigarette lighter socket issue; Blown fuse in car. | Ensure the transmitter is firmly inserted. Check if the car's cigarette lighter socket is working. Consult a mechanic if car fuse is suspected. |
| Static or poor audio quality | FM frequency interference; Transmitter/radio frequency mismatch; Low volume. | Find a new, clear FM frequency on both the car radio and transmitter. Ensure volumes on both devices are adequate. Avoid strong radio signals. |
| Cannot pair via Bluetooth | Bluetooth not enabled on phone; Device already paired; Transmitter not in pairing mode. | Ensure Bluetooth is on and visible on your phone. Disconnect from other Bluetooth devices. Restart both the phone and transmitter. |
| USB/SD card not playing | Unsupported file format; Corrupted files; Card/drive not inserted correctly; Capacity exceeded. | Ensure files are MP3/WMA/FLAC/APE/WAV. Reinsert the USB drive/SD card. Check if the storage capacity is within 32GB. |
| Hands-free call quality is poor | Microphone obstruction; Environmental noise; Low signal. | Ensure nothing is blocking the microphone. Reduce background noise in the car. Check phone's signal strength. |
Specifications
| Feature | Detail |
|---|---|
| Brand | Clydek |
| Model Number | Clydek-T24 |
| Color | Silver |
| Screen Size | 1.1 Inches |
| Connectivity Technology | Bluetooth, USB |
| Wireless Communication Standard | Bluetooth 5.0 |
| Special Features | 3 music playback modes, Hands-free calling, Dual USB ports, Easy setup, Latest Bluetooth 5.0 Version |
| Material | Plastic |
| Total USB Ports | 2 (1x QC3.0, 1x 5V/1A) |
| Compatible Devices | Smartphones (iPhone, Samsung, Huawei, etc.), Tablets (iPad), Bluetooth Speakers/Headphones |
| Rechargeable Battery Included | No |
| Media Type Supported | MP3, WMA, FLAC, APE, WAV |
| FM Frequency Range | 76.0-108.0 MHz |
Warranty and Support
Clydek products are designed for reliability and performance. For information regarding warranty coverage, technical support, or service, please refer to the official Clydek website or contact their customer service department. Keep your purchase receipt as proof of purchase for any warranty claims.
For the most up-to-date information, please visit the manufacturer's official support page or contact their customer service directly.
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