1. Introduction
Thank you for choosing the Music Sound Breeze Wireless Bluetooth Earphones. These earphones are designed to provide a practical and stylish audio experience with touch controls, automatic pairing, and a compact capsule design. This manual provides essential information for the proper use, setup, and maintenance of your device.
The Breeze earphones offer balanced sound and optimal comfort for extended listening sessions, with up to 20 hours of battery life when combined with the charging case. Enjoy your favorite music, manage calls, and activate your voice assistant with ease.
2. Safety Information
- Do not expose the device to extreme temperatures, humidity, or corrosive substances.
- Avoid dropping or subjecting the earphones and charging case to strong impacts.
- Do not attempt to disassemble or repair the device yourself. Refer to authorized service personnel.
- Keep out of reach of children.
- Dispose of the device and its components responsibly, following local regulations.
- Prolonged listening at high volume levels may cause hearing damage. Adjust volume to a safe level.
3. Package Contents
Please check the package for the following items:
- Music Sound Breeze Wireless Earphones (Left and Right)
- Charging Case
- USB-C Charging Cable
- User Guide

Figure 3.1: Package Contents - Earphones, Charging Case, USB-C Cable, and User Guide.
4. Setup
4.1 Charging the Earphones and Case
- Before first use, fully charge the earphones and the charging case.
- Place the earphones into the charging case. Ensure they are correctly seated.
- Connect the USB-C charging cable to the charging port on the case and the other end to a USB power source (e.g., computer, wall adapter).
- The LED indicator on the charging case will show the charging status. A green light indicates a full charge.

Figure 4.1: Music Sound Breeze Charging Case with LED Indicator.

Figure 4.2: Battery Life Overview.
4.2 Pairing with a Bluetooth Device
- Ensure the earphones are charged.
- Open the charging case. The earphones will automatically enter pairing mode.
- On your smartphone or Bluetooth-enabled device, go to the Bluetooth settings.
- Search for available devices and select "Music Sound Breeze" from the list.
- Once connected, the earphones will indicate successful pairing (e.g., an audio prompt or LED change).
- The earphones feature automatic pairing and will reconnect to the last paired device when removed from the case.
5. Operating the Earphones
The Music Sound Breeze earphones feature intuitive touch controls for various functions.

Figure 5.1: Earbud Touch Control Area.
5.1 Basic Functions
- Power On: Open the charging case, or long-press the touch area on both earphones if they are off and out of the case.
- Power Off: Place the earphones back into the charging case and close the lid, or long-press the touch area on both earphones until they power off.
- Play/Pause: Single tap on either earphone.
- Next Track: Double tap the right earphone.
- Previous Track: Double tap the left earphone.
- Volume Up: Triple tap the right earphone.
- Volume Down: Triple tap the left earphone.
5.2 Call Management
- Answer/End Call: Single tap on either earphone.
- Reject Call: Long press on either earphone.
5.3 Voice Assistant
- Activate Voice Assistant: Long press the touch area on either earphone (when not on a call).
6. Maintenance
6.1 Cleaning
- Use a soft, dry, lint-free cloth to clean the earphones and charging case.
- Do not use abrasive cleaners, alcohol, or chemical solvents.
- Gently clean the ear tips and speaker mesh to remove earwax or debris.
6.2 Storage
- When not in use, store the earphones in their charging case to protect them and keep them charged.
- Store the device in a cool, dry place, away from direct sunlight and extreme temperatures.

Figure 6.1: Compact and Portable Design for Easy Storage.
7. Troubleshooting
If you encounter issues with your Music Sound Breeze earphones, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Earphones do not power on. | Low battery. | Charge the earphones and charging case fully. |
| Cannot pair with device. | Bluetooth is off on your device; earphones not in pairing mode; too far from device. | Ensure Bluetooth is enabled. Place earphones in case, open lid to enter pairing mode. Keep devices within 10 meters. |
| No sound or intermittent sound. | Earphones not properly connected; volume too low; interference. | Reconnect earphones. Increase volume on both earphones and device. Move away from sources of interference. |
| One earphone not working. | Low battery; connection issue. | Ensure both earphones are charged. Try resetting the earphones by placing them in the case and re-pairing. |
| Touch controls unresponsive. | Temporary software glitch; dirty touch sensor. | Clean the touch sensor area. Place earphones back in case, close, then reopen to reset. |
8. Specifications
| Feature | Detail |
|---|---|
| Model Name | BTMSTWSBREEZEK |
| Connectivity Technology | Wireless (Bluetooth) |
| Included Components | Cable, Wireless Charging Case |
| Product Weight | 0.06 Kilograms (60 grams) |
| Manufacturer | Cellularline S.p.A. |
| Average Battery Life | 20 Hours (with charging case) |
| Batteries Included | Yes |
| Battery Cell Composition | Lithium Ion |
| Rechargeable Battery Included | Yes |
| Color | Black |
| Form Factor | True Wireless |
| Noise Control | Sound Isolation |
| Headphone Jack | No Jack |
9. Warranty and Support
For warranty information and customer support, please refer to the documentation provided with your purchase or contact your retailer. Keep your proof of purchase for warranty claims.
For further assistance, you may visit the official Music Sound website or contact their customer service department.