Introduction
This manual provides comprehensive instructions for the Maxell Sync Up B13 True Wireless Earbuds. Please read this manual thoroughly before using the product to ensure proper operation and to maximize your listening experience. Keep this manual for future reference.

Image: Maxell Sync Up B13 True Wireless Earbuds in their charging case.
What's in the Box
- Maxell Sync Up B13 True Wireless Earbuds (Left and Right)
- Charging Case
- Ear Cushions (various sizes)
- USB Charging Cable
- Instruction Manual (this document)
Product Overview
The Maxell Sync Up B13 earbuds are designed for comfort and high-quality audio. Each earbud features a touch-sensitive control area and an integrated microphone. The compact charging case provides additional battery life and protects the earbuds when not in use.

Image: Overview of Maxell Sync Up B13 earbuds and charging case, highlighting features like 12 hours playtime, noise isolating design, heavy bass, and touch controls.
Setup
1. Charging the Earbuds and Case
Before first use, ensure both the earbuds and the charging case are fully charged.
- Place the earbuds into the charging case. Ensure they are seated correctly.
- Connect the charging case to a power source using the provided USB cable.
- The LED indicators on the case will show the charging status.
- A full charge for the charging case takes approximately 1.5 hours.
- A full charge for the earbuds takes approximately 1.5 hours.

Image: Maxell Sync Up B13 earbuds placed in their charging case, indicating charging status.
2. Bluetooth Pairing
The earbuds feature automatic pairing and syncing. Follow these steps to connect them to your device:
- Ensure the earbuds are charged.
- Open the charging case. The earbuds will automatically power on and enter pairing mode.
- On your device (smartphone, tablet, etc.), go to the Bluetooth settings.
- Search for available devices and select "Maxell Sync Up B13" (or similar name).
- Once connected, you will hear a confirmation tone, and the earbuds will be ready for use.
- If pairing fails, place the earbuds back in the case, close the lid, wait a few seconds, then repeat the steps.
Operating the Earbuds
Wearing the Earbuds
Select the ear cushions that provide the most comfortable and secure fit for optimal sound quality and stability. Insert the earbuds into your ears and gently twist them until they feel snug.

Image: A person wearing Maxell Sync Up B13 earbuds, demonstrating a comfortable and secure fit.
Touch Controls
The Maxell Sync Up B13 earbuds feature intuitive touch controls on each earbud. The specific functions may vary slightly depending on your device and operating system.
- Play/Pause: Single tap on either earbud.
- Next Track: Double tap on the right earbud.
- Previous Track: Double tap on the left earbud.
- Volume Up: Triple tap on the right earbud.
- Volume Down: Triple tap on the left earbud.
- Answer/End Call: Single tap on either earbud during an incoming call or active call.
- Reject Call: Press and hold either earbud for 2 seconds during an incoming call.
- Activate Voice Assistant: Press and hold either earbud for 2 seconds (when not on a call).

Image: A hand demonstrating interaction with the touch control area on a Maxell Sync Up B13 earbud.
Maintenance
Proper maintenance ensures the longevity and performance of your earbuds.
- Cleaning: Regularly clean the earbuds and charging case with a soft, dry cloth. Do not use harsh chemicals or abrasive materials.
- Ear Cushions: Remove and clean the ear cushions periodically with a damp cloth and mild soap, then dry thoroughly before reattaching.
- Storage: When not in use, store the earbuds in their charging case to protect them and keep them charged.
- Water Resistance: The Maxell Sync Up B13 earbuds are NOT water resistant. Avoid exposure to water, rain, sweat, or other liquids to prevent damage. Note: Some promotional images may suggest water resistance (IPX-4), but product specifications explicitly state "Not Water Resistant". Please avoid water exposure.

Image: Maxell Sync Up B13 earbuds shown with water splashes. Important: These earbuds are NOT water resistant. Avoid contact with liquids.
Troubleshooting
If you encounter issues with your Maxell Sync Up B13 earbuds, refer to the following common solutions:
- Earbuds not pairing with each other: Place both earbuds back into the charging case, close the lid, wait 5 seconds, then open the lid again. They should automatically sync.
- Earbuds not connecting to device:
- Ensure Bluetooth is enabled on your device.
- Make sure the earbuds are charged.
- Forget "Maxell Sync Up B13" from your device's Bluetooth list and attempt to pair again.
- Restart your device.
- No sound from one earbud:
- Ensure both earbuds are charged.
- Place both earbuds back in the case, close, and reopen to force re-sync.
- Check your device's audio balance settings.
- Charging issues:
- Ensure the charging cable is securely connected to both the case and the power source.
- Verify the power source is active.
- Clean the charging contacts on both the earbuds and inside the case with a dry cotton swab.
- Poor sound quality:
- Ensure the earbuds are properly seated in your ears with the correct size ear cushions.
- Move closer to your connected device to avoid interference.
- Check the audio source quality.
Specifications
| Model Name | Sync Up B13 True Wireless In-Ear Earbud |
| Model Number | 199899 |
| Bluetooth Version | 5.0 |
| Chipset Solution | AB5376A2 |
| Earbud Battery Capacity | 30mAh (each) |
| Charging Case Battery Capacity | 300mAh |
| Play Time | Up to 3 hours (earbuds), 12 hours total with charging case |
| Charging Time (Case) | Approx. 1.5 hours |
| Charging Time (Earbuds) | Approx. 1.5 hours |
| Driver Size | 10mm |
| Power Input | 3mW |
| Speaker Output | 3mW |
| Impedance | 16 Ohms |
| Working Voltage | 5V-, 240mA |
| Item Weight | 2.08 ounces (0.13 Pounds) |
| Product Dimensions | 6.5 x 1.25 x 3.5 inches |
| Material | Silicone |
| Water Resistance Level | Not Water Resistant |
Official Product Video
Watch the official Maxell Sync Up B13 product video for a visual overview of its features and design.
Video: Maxell Sync Up B13 True Wireless Earbuds promotional video, showcasing design, features, and sound quality.
Warranty and Support
Maxell products are designed for reliability and performance. For information regarding warranty coverage, technical support, or service, please visit the official Maxell website or contact their customer service department. Keep your proof of purchase for warranty claims.
You can find more information at the Maxell Store on Amazon.
Important Safety Information
Proposition 65 Warning:
This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.





