Introduction
The JBL C115 True Wireless Earbuds deliver a high-quality audio experience with the convenience of true wireless technology. Designed for comfort and extended use, these earbuds feature crystal clear calls, powerful bass, and intuitive controls. This manual provides essential information for setting up, operating, and maintaining your JBL C115 earbuds.
What's in the Box
Upon opening your JBL C115 True Wireless Earbuds package, you will find the following components:
- 1 x JBL C115TWS Earbuds
- 3 sizes of eartips (S, M, L) for a customized fit
- 1 x Type-C USB charging cable
- 1 x Charging case
- 1 x Warranty / Warning (W / !) document
- 1 x Quick Start Guide (QSG) / Safety Sheet (S / i)

Image: Contents of the JBL C115TWS package, including earbuds, charging case, eartips, and cables.
Product Overview
The JBL C115 earbuds are designed for optimal audio performance and user convenience. They feature a compact design, touch controls, and a portable charging case.

Image: A person wearing the JBL C115TWS earbuds, highlighting their discreet and comfortable fit.
Key Features:
- True Wireless Design: Enjoy complete freedom of movement without cables.
- JBL Pure Bass Sound: Experience rich, undistorted bass from 5.8mm dynamic drivers.
- 21 Hours Combined Playback: 6 hours on earbuds + 15 hours from the charging case.
- Quick Charge: 15 minutes of charging provides up to 1 hour of playback.
- Dual Connect: Use either earbud independently or both for stereo sound.
- Voice Assistant Support: Access your device's voice assistant with a simple tap.
- Hands-Free Calls: Integrated microphone for clear calls.
- Comfort Fit: Ergonomic design with multiple eartip sizes for secure wear.
Setup
Initial Power On and Pairing:
- Power On: Open the charging case. The earbuds will automatically power on and enter pairing mode. The blue blinking light on the right earbud indicates pairing mode.
- Connect to Device: On your mobile device, go to Bluetooth settings and select "JBL C115 TWS" from the list of available devices.
- Automatic Sync: Once the right earbud is paired, the left earbud will automatically connect, providing a seamless stereo experience.

Image: Illustration of the JBL C115TWS earbuds and charging case, emphasizing instant connectivity with Bluetooth 5.0.
Manual Pairing:
If automatic pairing does not occur or you wish to pair manually:
- Hold and press the right earbud for 2 seconds to enable pairing mode.
- Then, connect to your device via Bluetooth settings.
Wearing the Earbuds
For optimal sound quality and comfort, ensure the earbuds are worn correctly and the appropriate eartip size is selected.
- Choose Eartips: Select the eartip size (S, M, L) that best fits your ear canal. A snug fit is crucial for sound quality and bass response.
- Insert Earbud: Place the earbud into your ear canal with the bottom facing down.
- Twist to Secure: Gently twist the top of the earbud firmly into your upper ear until it feels secure and comfortable.

Image: An earbud shown with different sizes of eartips (Small, Medium, Large) to illustrate the importance of selecting the correct size for a comfortable and secure fit.
Note: If the eartip size does not match your ear canals or the headset is not worn properly, you may not achieve the correct sound qualities or call performance. Experiment with different sizes for the best experience.
Operating Instructions
Music and Call Controls:
The JBL C115 earbuds feature intuitive touch controls for managing your audio and calls.
- Play/Pause: Single tap on either earbud.
- Next Track: Double tap on the right earbud.
- Previous Track: Double tap on the left earbud.
- Answer/End Call: Single tap on either earbud.
- Reject Call: Press and hold either earbud for 2 seconds.

Image: The JBL C115TWS earbuds shown alongside a smartphone displaying a call interface, highlighting the crystal clear call feature.
Voice Assistant Integration:
Activate your device's voice assistant for hands-free control.
- Activate Voice Assistant: Triple tap on either earbud. Compatible with Siri, Google Assistant, and Bixby.

Image: A single JBL C115TWS earbud displayed with the logos of Alexa and Google Assistant, signifying its compatibility with voice assistant features.
Battery and Charging
The JBL C115 earbuds offer extended playback time and convenient charging options.
- Total Playtime: Up to 21 hours (6 hours on earbuds + 15 hours from charging case).
- Quick Charge: Get up to 1 hour of playback with just 15 minutes of charging.
- Full Charge Time: Less than 2 hours for 100% battery.

Image: The JBL C115TWS earbuds in their charging case, illustrating the impressive 21-hour total playback time and the quick charge capability.
Charging the Case:
Use the included Type-C USB charging cable to charge the case. The LED indicators on the case will show the charging status.

Image: The Type-C USB charging cable, used for charging the JBL C115TWS earbuds case and other compatible devices.
Connectivity
The JBL C115 earbuds utilize Bluetooth 5.0 for stable and efficient wireless connection.
- Bluetooth Version: 5.0
- Bluetooth Range: Up to 10 meters (33 feet)
- Dual Connect: Seamlessly switch between using one earbud (mono mode) or both (stereo mode) for music or calls.

Image: A visual representation of the Dual Connect feature of the JBL C115TWS, showing how earbuds can be used in both Mono and Stereo modes.
Sound Quality
JBL's 75 years of audio engineering expertise ensures crystal clear sound and powerful bass with the C115 earbuds.
- Audio Driver Size: 5.8mm Dynamic Drivers.
- True Bass: Experience pristine sound quality with full bandwidth audio and no distortion, even at maximum volume.
- Acoustic Room Construction: Expertly engineered for precise tuning and studio-quality sound reproduction.
Specifications
| Feature | Detail |
|---|---|
| Model Name | Tune |
| Connectivity Technology | Bluetooth 5.0 |
| Wireless Communication Technology | Bluetooth |
| Included Components | 1 x JBL C115TWS, 3 sizes of eartips (S, M, L), Type-C USB charging cable, Charging case, 1 x Warranty / Warning (W / !), 1 x QSG / Safety Sheet (S / i) |
| Material | Crystal |
| Charging Time | 15 Minutes (for 1 hour playback) |
| Recommended Uses | Entertainment, Calling, Gaming, Outdoor, Recording, Exercising, Running, Audio Monitoring, Travelling, Listening Music |
| Compatible Devices | All Bluetooth devices |
| Control Type | Media Control; Call Control; Voice Control |
| Item Weight | 73 Grams |
| Control Method | Touch |
| Battery Life | 21 Hours (6 hours earbuds + 15 hours case) |
| Audio Driver Type | Dynamic Driver |
| Bluetooth Range | 10 Metres |
| Audio Driver Size | 5.8 Millimetres |
| Earpiece Shape | Bud |
| Microphone format | 2 Mics |
| Microphone technology | Mono, Stereo |
| Power Source | Battery-Powered |
| Battery cell composition | Lithium Ion |
| Item Dimensions LxWxH | 16 x 10 x 4.2 Centimeters |
| Impedance | 14 Ohms |
Troubleshooting
If you encounter issues with your JBL C115 earbuds, try the following solutions:
- No Sound/Low Volume:
- Ensure earbuds are charged.
- Check device volume and earbud volume.
- Verify proper fit in ear canal; try different eartip sizes.
- Reconnect Bluetooth.
- Pairing Issues:
- Ensure Bluetooth is enabled on your device.
- Place earbuds back in the case and close, then reopen to re-enter pairing mode.
- Forget the device in your phone's Bluetooth settings and attempt to pair again.
- Earbuds Not Charging:
- Ensure the charging cable is securely connected to both the case and a power source.
- Check for debris in the charging ports of the case and earbuds.
- Ensure the earbuds are correctly seated in the charging case.
Maintenance
Proper care will extend the life of your JBL C115 earbuds:
- Cleaning: Regularly clean the earbuds and charging case with a soft, dry cloth. Remove eartips and clean them separately with mild soap and water, ensuring they are completely dry before reattaching.
- Storage: When not in use, store the earbuds in their charging case to protect them and keep them charged.
- Avoid Extreme Conditions: Do not expose the earbuds to extreme temperatures, humidity, or liquids. While water-resistant, they are not waterproof.
Warranty and Support
Your JBL C115 True Wireless Earbuds come with a 1-year manufacturer’s warranty.
- Warranty Coverage: The warranty covers manufacturing defects. Please refer to the included Warranty / Warning (W / !) document for full terms and conditions.
- Customer Support: For technical assistance, warranty claims, or further inquiries, please visit the official JBL support website or contact your local authorized service center.
Manufacturer: Harman International Industries, Inc, 8500, Balboa Blvd, Northridge, CA 91329, USA.
Importer: Harman International (India) Pvt Ltd, Salarpuria Sattva Knowledge Court, Office-1, Wing ‘A’ & ‘B’ 6th floor, Plot No. 9, Phase I, Doddenakkundi Industrial Area, Bearing Khata bearing Sl. No. 299 old No.62, situated at Survey No. 77, Doddenakkundi Village, K.R. Puram Hobli, Bangalore East Taluk, Bangalore -560048, Karnataka.





