Introduction
The JBL Tune 125TWS are True Wireless Bluetooth in-ear headphones designed to provide a seamless audio experience with JBL Pure Bass Sound. These earbuds feature an integrated microphone for calls and are suitable for various activities including music listening, calls, and sports. The included charging case extends the total battery life, ensuring your music is always ready.
This manual provides essential information for setting up, operating, maintaining, and troubleshooting your JBL Tune 125TWS headphones.
What's in the Box
- 1 x JBL Tune 125TWS True Wireless In-Ear Bluetooth Headphones
- 3 sizes of ear tips (S, M, L)
- 1 x USB Type-C charging cable
- 1 x Charging case
- 1 x Quick Start Guide
- 1 x Safety Sheet
Setup
1. Fitting the Earbuds
The JBL Tune 125TWS earbuds come with three different sizes of ear tips (Small, Medium, Large). Choosing the correct size is crucial for optimal sound performance and comfort. Experiment with the different sizes to find the most secure and comfortable fit for your ears.

Image: A person wearing a JBL Tune 125TWS earbud, illustrating how the earbud sits in the ear for a secure fit.
2. Initial Pairing
Upon removal from the charging case, the earbuds automatically enter pairing mode. For Android devices, they will automatically pair with a single tap if your Google account is synced. For other Bluetooth-enabled devices:
- Ensure the earbuds are charged and removed from the charging case.
- Activate Bluetooth on your device (smartphone, tablet, computer).
- Select "JBL Tune 125TWS" from the list of available Bluetooth devices.
- A confirmation sound or indicator will signal successful pairing.

Image: Visual representation of the fast pairing process between the JBL Tune 125TWS and a smartphone.
Operating the Headphones
1. Controls
The JBL Tune 125TWS earbuds feature intuitive touch controls for managing your audio and calls:
- Media Control: Play, pause, skip tracks.
- Volume Control: Adjust playback volume.
- Call Control: Answer, end, or reject calls.
Refer to the Quick Start Guide for specific tap patterns for each function.
2. Charging
The earbuds provide up to 8 hours of playback on a single charge. The portable charging case extends the total battery life to 32 hours. To charge your earbuds and case:
- Place the earbuds securely into their respective slots in the charging case.
- Connect the supplied USB Type-C cable to the charging port on the case and to a compatible USB power source.
- The LED indicators on the case will show the charging status. A full charge for the case takes approximately 2 hours.

Image: The JBL Tune 125TWS charging case and earbuds illustrating individual and combined battery life.
3. Dual Connect
The Dual Connect feature allows for flexible usage. You can use either the left or right earbud independently for listening to music or making calls, or use both together for a full stereo audio experience. This is useful for conserving battery life or for situations where you need to be aware of your surroundings.
4. Voice Assistant
Activate your device's voice assistant (e.g., Google Assistant, Siri) directly from the earbuds for hands-free control. This allows you to manage tasks, get information, and control your device using voice commands without needing to reach for your phone.

Image: A user interacting with a voice assistant via the JBL Tune 125TWS earbuds.
Maintenance
To ensure the longevity and optimal performance of your JBL Tune 125TWS headphones, follow these maintenance guidelines:
- Cleaning: Regularly clean the earbuds and charging case with a dry, soft, lint-free cloth. Do not use harsh chemicals or abrasive materials.
- Ear Tips: Remove and clean the ear tips periodically with a damp cloth and mild soap, then rinse and dry thoroughly before reattaching.
- Storage: Always store the earbuds in their charging case when not in use to protect them from dust, damage, and to maintain battery charge.
- Environmental Conditions: Avoid exposing the headphones to extreme temperatures, direct sunlight, liquids, or high humidity. While water-resistant, they are not waterproof and should not be submerged.
Troubleshooting
If you encounter issues with your JBL Tune 125TWS, refer to the following common solutions:
- No Sound or Connection Issues:
- Ensure both earbuds are charged.
- Verify Bluetooth is enabled on your device and the earbuds are selected.
- Try turning Bluetooth off and on again on your device.
- Forget/unpair "JBL Tune 125TWS" from your device's Bluetooth settings and re-pair.
- If issues persist, try resetting the earbuds. Consult the full product manual on the JBL support website for specific reset instructions.
- Poor Sound Quality:
- Ensure the ear tips provide a snug and secure fit. Try different sizes.
- Clean the ear tips and earbud grilles to remove any debris or earwax.
- Move closer to your connected device to minimize interference.
- Charging Problems:
- Check that the USB Type-C charging cable is securely connected to both the case and the power source.
- Ensure the earbuds are correctly seated in the charging case.
- Try a different charging cable or power adapter.
- Clean the charging contacts on both the earbuds and the case with a dry cotton swab.
Specifications
| Feature | Specification |
|---|---|
| Brand | JBL |
| Model Name | JBLT125TWSBLK |
| Color | Black |
| Ear Placement | In-ear |
| Form Factor | In-ear |
| Impedance | 14 Ohm |
| Noise Control | Active Noise Cancellation |
| Frequency Response | 20 Hz - 20 kHz |
| Sensitivity | 91 dB |
| Connectivity Technology | Wireless |
| Wireless Technology | Bluetooth |
| Bluetooth Range | 10 Meters |
| Bluetooth Version | 5.2 |
| Control Type | Media control, volume control, call control |
| Control Method | Touch |
| Item Weight | 73 Grams |
| Charging Case Weight | 73 Grams |
| Charging Case Battery Life | 32 Hours (combined with earbuds) |
| Charging Case Charging Time | 2 Hours |
| Earbud Battery Life | 8 Hours |
| Audio Driver Type | Dynamic Driver |
| Earbud Material | Silicone |
| Water Resistance Level | Water Resistant |
| Compatible Devices | Devices with Bluetooth functionality |
Warranty and Support
Warranty Information
The JBL Tune 125TWS headphones come with a 12-month warranty from the date of purchase, covering manufacturing defects. Please retain your proof of purchase for warranty claims.
Customer Support
For further assistance, detailed FAQs, or to download the full product manual, please visit the official JBL support website. You can also contact JBL customer service for technical support or warranty inquiries.





