R2B Bluetooth Transmitter

1. Bluetooth Transmitter

This section details the R2B Bluetooth Transmitter for use in your car.

1.1 Specifications

• Adjustable, colorful ambient lighting.
• Input voltage 12V / 24V.
• Car charger function, with two USB ports and one PD port.
• The maximum output current is 3.1A.
• Display shows frequency/car battery voltage.
• Frequency range: 87.6–107.9MHz
• Support for playing music from USB drive / TF card (maximum 32 GB).
• Supports MP3-WAV format files.
• Supports A2DP music playback.
• Automatic shutdown memory function.
• Supports hands-free function with a built-in microphone.
• Auto battery voltage monitor.

1.2 Safety Warnings

1.2.1 General Safety Warnings

• [Warning] Use the Bluetooth transmitter only in vehicles with the correct power supply (12V/24V). Incorrect use may cause damage to the device or the vehicle.
• [Warning] Do not operate the transmitter while driving. Set all configurations before driving or when the vehicle is stationary.
• [Warning] Do not place the device in direct sunlight or near heat sources. Overheating may cause damage to the product or pose a fire hazard.
• [Warning] The device is not waterproof. Protect it from moisture, rain, or other liquids to prevent short circuits or damage.
• [Warning] Do not open or disassemble the device. Repairs should only be performed by qualified personnel.

1.2.2 Electrical Safety Warnings

• [Warning] Connect the transmitter only to the designated car charger or cigarette lighter. Incorrect connection may cause damage.
• [Warning] Use only the included or recommended accessories to prevent damage or reduced performance.
• [Warning] Remove the device from the cigarette lighter if the vehicle will not be used for an extended period to prevent battery drain.

1.2.3 Bluetooth and Signal Safety

• [Warning] Ensure your device is compatible with the Bluetooth frequency of the transmitter to avoid interference or dropped connections.
• [Warning] Do not use the device near sensitive equipment that may experience interference from Bluetooth signals.

1.2.4 Environment and Responsibility

• [Warning] Do not dispose of the device with household waste. Return it to a recognized electronic waste collection point.
• Avoid excessive use of lighting to save energy.

2. Installation

This section guides you through the installation and initial connection of the transmitter.

2.1 Product Diagram

The R2B Bluetooth Transmitter has the following components:

• 1. LED display
• 2. USB port
• 3. PD port/USB-C port
• 4. Previous track button
• 5. Multifunction button
• 6. LED colorful ambient light
• 7. TF card slot
• 8. EQ light button
• 9. Microphone
• 10. QC3.0 port
• 11. Next track button
• 12. Metal connector (plugs into car's power socket)

2.1.1 Device Dimensions

• Width: 4.5 cm
• Device body height: 5.5 cm
• Total height (including connector): 8 cm
• Connector length: 5 cm

2.2 Installation and Initial Connection

2.2.1 Connecting the Transmitter to Power

Plug the Bluetooth FM transmitter into your car's cigarette lighter socket. The device will receive power immediately and start up automatically. You will see a lit screen and/or LED ring light up.

2.2.2 Connecting to Your Phone via Bluetooth

Turn on Bluetooth on your smartphone and look for "R2B" (the name of the transmitter) in the list of available devices. Then tap the name to connect.

2.3 Pairing the Transmitter with Your Car Radio (FM Frequency)

2.3.1 Finding a Free FM Frequency

Turn on the car radio and search for an FM frequency where only static is heard (no active radio station). Recommended frequencies are: 87.5–87.6 MHz and 107.9–108.0 MHz. These are rarely used by regular broadcasters, reducing the chance of interference.

2.3.2 Changing the FM Frequency on the Transmitter

Press and hold the round dial (phone button) on the transmitter until the frequency number on the screen starts to blink.

2.3.3 Setting the FM Frequency on the Transmitter

Turn the knob to set the same frequency as on your car radio. Press the button once more to lock in the frequency.

[Tip] Save this frequency as a shortcut on your car radio so you can quickly switch back to it.

2.4 Sound Settings and Lighting

2.4.1 Setting the Volume

• Set the volume on the transmitter to the highest level (30 out of 30). This will strengthen the audio signal sent from the transmitter to the car radio.
• You will now control the volume using the volume knob on your car radio.
• [Note] Do not set the volume on the transmitter so high that the sound distorts. Lower the volume on the transmitter slightly until the sound is clear.

2.4.2 Changing Music

Use the arrow buttons to pause music or skip tracks.

2.4.3 EQ Button (Orange Button)

• Press once: switch between sound modes: "Normal" (standard sound) or "Bass" (enhanced low tones).
• Press and hold: change the color of the light ring on the transmitter. Choose from 10 different colors (CO1 to CO10).

2.5 Playing Music via USB or Memory Card

2.5.1 USB port with music symbol

Only suitable for USB drives with music files (such as MP3). This port functions as a charger only when using a cable without data capabilities.

2.5.2 PD port (USB-C) and QC3.0 port

Suitable for both charging and music playback via a cable, depending on your device and cable type.

2.5.3 TF card slot (microSD)

For playing music directly from a microSD card.

2.6 Calling via the Transmitter

2.6.1 Answering a call

To answer an incoming call: press the phone button once.

2.6.2 Rejecting a call

To reject a call: press and hold the phone button.

2.6.3 Redialing

To redial the last number: press the phone button twice quickly.

2.7 Playback Order and Priorities

The transmitter automatically determines which source is used for music playback. The order of priority is as follows:

1. Bluetooth (wireless via phone)
2. TF card (microSD)
3. USB drive (also known as 'U-disk')

This means:

• If Bluetooth is active, it will always take precedence over music from a USB drive or TF card.
• For example, if you want to play music from a USB drive, you must first disconnect Bluetooth and/or remove the TF card.

During playback:

• If you receive an incoming call, this will always take priority over music. The music automatically pauses, and you switch to the phone call.
• Once the call ends, the last active music source resumes automatically.

3. Sustainable Recycling

Your effort for a better environment

R2B highly values sustainability and encourages customers to recycle products responsibly at the end of their lifespan. Do not dispose of products with regular waste; instead, return them to a certified recycling organization or take them to your local recycling center.

Together, we can create a more sustainable future! ♻️?

4. Warranty Terms

4.1 Quality Guarantee

Since 2018, R2B Store has offered reliable quality with a 2-year manufacturer's warranty on all its products. Within this warranty period, R2B will repair or replace any proven manufacturing defects at no cost. After one year, you will need to demonstrate that the defect is due to manufacturing. Outside the warranty period, R2B offers affordable repairs with clearly stated costs upfront.

4.2 Expiry of Warranty

R2B cannot provide warranty coverage in the following cases:

• a. After the expiration of the warranty period mentioned above.
• b. If the defect is the result of improper use, neglect, or physical damage caused by dropping or impact.

4.3 Claiming Warranty

If you would like to claim warranty, or are unsure whether your situation is covered, please contact R2B Store to discuss the warranty options together.

4.4 Right of Return

If you are not completely satisfied or have another reason to return your product, you can return it within 30 days, unless stated otherwise in the conditions of specific platforms. The terms of the relevant platform determine whether a product is eligible for return and within which timeframe.

Make sure the product is undamaged and returned in its original packaging. Once the return is received and accepted, you will be refunded the full purchase amount, minus any applicable return shipping costs.

4.5 About R2B Store

R2B aims to contribute to a safe, pleasant, and comfortable journey – whether you're commuting to work, heading out on vacation, or enjoying active outdoor movement. At R2B, carefully selected products are combined with practical tips, honest advice, and inspiring content. R2B helps you not only choose the right accessories but also provides information that makes every form of being on the move – from ride to run – easier and more enjoyable.

R2B believes in mobility, safety, and convenience for everyone. Together with its community, R2B is building a place you can always rely on – whether you're on the road or on the go!

R2B is available Monday through Friday. For more information and ways to contact R2B, please visit the contact page on their website.

Contact Information

R2B Store B.V.

Polderweg 7

1446AA Purmerend