Introduction
Thank you for choosing the R-MUSIC RM310114 KOL Wireless Active Noise Cancelling Headphones. These headphones are designed to provide a rich and clear audio experience with the added benefit of active noise cancellation, reducing up to 85% of ambient noise. Featuring a foldable and rotatable design, Bluetooth V4.1 connectivity, and up to 10 hours of battery life, they are ideal for travel, commuting, and office use. Please read this manual carefully to ensure proper use and maintenance of your headphones.
Package Contents
Please check the package for the following items:
- R-MUSIC KOL Wireless Active Noise Cancelling Headphones
- Carrying Pouch
- 3.5mm Audio Jack Cable
- Airplane Adapter
- Micro USB Charging Cable
- User Manual (this document)

Image: All items included in the R-MUSIC KOL headphone package.
Product Overview
Familiarize yourself with the various parts and controls of your R-MUSIC KOL headphones.

Image: Front view of the R-MUSIC KOL headphones.
Headphone Components
- Headband: Adjustable for a comfortable fit.
- Earcups: Soft, circum-aural earcups designed for comfort and passive noise isolation.
- Control Buttons: Located on the right earcup for power, volume, and ANC functions.
- Microphone: Integrated for hands-free calls.
- 3.5mm Audio Jack: For wired connection.
- Micro USB Charging Port: For recharging the internal battery.

Image: Close-up of the right earcup showing control buttons.
Setup
1. Charging the Headphones
- Connect the micro USB charging cable to the charging port on the headphones.
- Connect the other end of the USB cable to a USB power source (e.g., computer USB port, USB wall adapter).
- The LED indicator will show charging status. A full charge typically takes about 3 hours and provides up to 10 hours of playback.
2. Bluetooth Pairing
- Ensure the headphones are turned off.
- Press and hold the Power button for approximately 5-7 seconds until the LED indicator flashes red and blue alternately. This indicates the headphones are in pairing mode.
- On your device (smartphone, tablet, computer), enable Bluetooth and search for available devices.
- Select "R-MUSIC KOL" from the list of found devices.
- Once successfully paired, the LED indicator will typically show a solid blue light or flash blue slowly.
3. Wired Connection
If Bluetooth is not available or the battery is depleted, you can use the included 3.5mm audio jack cable.
- Plug one end of the 3.5mm audio cable into the headphone's audio jack.
- Plug the other end into your audio source's 3.5mm output.
- The headphones will function in passive mode (without active noise cancellation or Bluetooth features).
Operating Instructions
Power On/Off
- To Power On: Press and hold the Power button until the LED indicator lights up.
- To Power Off: Press and hold the Power button until the LED indicator turns off.
Active Noise Cancellation (ANC)
The ANC feature reduces ambient noise by up to 85%.
- To Activate ANC: Press the dedicated ANC button (refer to Product Overview for location). An indicator light will typically illuminate.
- To Deactivate ANC: Press the ANC button again.
Audio Playback and Call Management
- Play/Pause: Press the Power button once.
- Volume Up: Press the "+" button.
- Volume Down: Press the "-" button.
- Answer/End Call: Press the Power button once during an incoming call.
- Reject Call: Press and hold the Power button during an incoming call.
Foldable Design
The headphones feature foldable joints for compact storage and portability.

Image: R-MUSIC KOL headphones demonstrating the foldable earcup design.

Image: R-MUSIC KOL headphones in a folded, compact state for easy storage.
- Gently fold the earcups inwards towards the headband to reduce the headphone's size.
- Store them in the provided carrying pouch to protect them during transport.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the headphones. Do not use abrasive cleaners or solvents.
- Storage: When not in use, store the headphones in their carrying pouch in a cool, dry place, away from direct sunlight and extreme temperatures.
- Battery Care: To prolong battery life, avoid fully discharging the headphones frequently. Charge them regularly, even if not used for extended periods.
Troubleshooting
No Power
- Ensure the headphones are fully charged. Connect them to a power source using the micro USB cable.
Cannot Pair via Bluetooth
- Make sure the headphones are in pairing mode (LED flashing red and blue).
- Ensure Bluetooth is enabled on your device and it is within range (typically 10 meters).
- Try forgetting the device from your device's Bluetooth list and re-pairing.
- Restart both the headphones and your device.
No Sound or Low Volume
- Check the volume levels on both the headphones and your connected device.
- Ensure the headphones are properly paired or the 3.5mm cable is securely connected.
- If using wired mode, ensure the cable is not damaged.
Active Noise Cancellation (ANC) Not Effective
- Ensure the ANC feature is activated (check the indicator light).
- ANC is most effective against low-frequency, constant noise. It may not completely eliminate all sounds, especially voices or sudden, high-frequency noises.
Specifications
| Feature | Specification |
|---|---|
| Brand | R-Music |
| Model Name | KOL |
| Model Number | RM310114 |
| Color | Black |
| Form Factor | Over-Ear (Circum-Auricular) |
| Noise Control | Active Noise Cancellation (ANC) |
| Connectivity Technology | Bluetooth V4.1, 3.5mm Jack Cable |
| Battery Life | Up to 10 hours (approx.) |
| Charging Time | Approx. 3 hours |
| Headphone Jack | 3.5 mm |
| Product Features | Foldable, Rotatable Earcups |
| Compatible Devices | Smartphones, Tablets, Computers, MP3/MP4 Players |
| Recommended Uses | Commuting, Traveling, Working in noisy environments |
Warranty and Support
R-Music products are manufactured with high-quality standards. For warranty information or technical support, please refer to the warranty card included in your package or contact your retailer. Keep your proof of purchase for any warranty claims.