Introduction
The Anker Roav Smart Charge T1 is a versatile in-car accessory designed to enhance your driving experience. It functions as a Bluetooth FM transmitter, allowing you to stream audio from your smartphone to your car's stereo system via an FM radio frequency. Additionally, it features a large LED display, supports hands-free calling, and includes an AUX output for direct audio connection. The device also offers Quick Charge 3.0 compatibility for efficient charging of your mobile devices.
Safety Information
- Ensure the device is securely plugged into the car's 12V power outlet before driving.
- Do not operate the device in a manner that distracts you from driving.
- Avoid exposing the device to extreme temperatures, direct sunlight, or moisture.
- Keep out of reach of children.
- Do not disassemble or attempt to repair the device yourself. Contact customer support for assistance.
Product Overview
Familiarize yourself with the components of your Roav Smart Charge T1.

Figure 1: The Anker Roav Smart Charge T1, showing its main display unit connected via a flexible gooseneck to the car charger base. The display unit features a large LED screen showing "107.5" and a central multi-function button with blue backlighting, flanked by track navigation buttons. The car charger base includes two USB charging ports.
- FM Transmitter Unit: Contains the LED display, control buttons, and microphone.
- Flexible Gooseneck: Allows for adjustable positioning of the transmitter unit.
- Car Charger Base: Plugs into the car's 12V power outlet and houses the USB charging ports.
- USB Charging Ports: For charging mobile devices. One port supports Quick Charge 3.0.
- AUX Output: 3.5mm jack for direct audio connection to car stereo (if available).
Setup
- Insert into Car Outlet: Plug the Roav Smart Charge T1 into your car's 12V power outlet (cigarette lighter socket). The device will power on automatically, and the LED display will illuminate.
- Adjust Position: Adjust the flexible gooseneck to position the display unit for optimal viewing and accessibility.
- Set FM Frequency:
- Tune your car's FM radio to an empty frequency (one with no active broadcast).
- On the Roav Smart Charge T1, press and hold the multi-function button (the central button) until the FM frequency on the LED display starts flashing.
- Use the left and right navigation buttons to adjust the frequency on the T1 to match the empty frequency on your car radio.
- Once matched, press the multi-function button again to confirm the frequency.

Figure 2: The Anker Roav Smart Charge T1 displaying "107.5" on its LED screen, with a hand pressing the central multi-function button. This image illustrates the process of setting the FM frequency for audio transmission to the car stereo.
- Pair with Bluetooth:
- On your smartphone, enable Bluetooth and search for available devices.
- Select "Roav T1" from the list of devices to pair. A voice prompt will confirm successful pairing.

Figure 3: The Anker Roav Smart Charge T1 shown next to a smartphone with its Bluetooth settings open, indicating a successful connection. A Bluetooth symbol is visible between the two devices, signifying wireless pairing.
Operating Instructions
Playing Music
- Bluetooth Streaming: Once paired, play music on your smartphone. The audio will be transmitted to your car stereo via the set FM frequency.
- USB Drive Playback: Insert a USB flash drive containing MP3/WMA/FLAC/WAV files into the designated USB port (not the Quick Charge port). The T1 will automatically detect and play music from the drive.
- AUX Output: Connect an audio cable from the T1's AUX output to your car stereo's AUX input for a direct wired connection.

Figure 4: The Anker Roav Smart Charge T1 displaying "107.5" while a smartphone next to it shows a music player interface with "Jazz Party" currently playing. This illustrates the device's function in streaming audio from a phone to the car's FM radio.
Hands-Free Calling
- Answer/End Call: Press the multi-function button once to answer an incoming call or end an ongoing call.
- Reject Call: Press and hold the multi-function button for 2 seconds to reject an incoming call.
- Redial: Double-press the multi-function button to redial the last number.

Figure 5: The Anker Roav Smart Charge T1 next to a smartphone displaying an incoming call screen from "Joy Phone". A hand is shown pressing the central multi-function button on the T1, indicating its use for answering or managing calls hands-free.
Charging Devices
- Connect your device's USB charging cable to one of the USB ports on the car charger base.
- For faster charging, use the port labeled "QC 3.0" with compatible devices.
Maintenance
- Clean the device with a soft, dry cloth. Do not use liquid cleaners or aerosols.
- Ensure the 12V power outlet and the device's plug are free from dust and debris for optimal connection.
- Store the device in a cool, dry place when not in use for extended periods.
Troubleshooting
| Problem | Solution |
|---|---|
| No power to the device. |
|
| Poor audio quality/static. |
|
| Bluetooth connection issues. |
|
| Device not charging phone. |
|
Specifications
| Feature | Detail |
|---|---|
| Brand | Anker Roav |
| Model Number | R5133 |
| Connectivity Technology | AUX, Bluetooth |
| Power Source | Vehicle 12V DC (Car Battery Powered) |
| Wireless Communication Standard | Bluetooth |
| Hardware Interface | Bluetooth, USB |
| Special Features | Bluetooth FM Transmitter, Quick Charge 3.0 compatible USB port, Hands-Free Calling, Big LED Display |
Warranty and Support
For warranty information and customer support, please refer to the official Anker Roav website or contact their customer service directly. Keep your purchase receipt for warranty claims.
Online Support: Visit www.anker.com/support for FAQs, troubleshooting guides, and contact information.





