1. Introduction
This manual provides detailed instructions for the safe and efficient use of your Monster D02 TWS In-Ear Headphones. Please read this manual thoroughly before using the product and retain it for future reference.
1.1 Package Contents
- Monster D02 TWS In-Ear Headphones (2)
- Charging Case (1)
- TYPE-C Charging Cable (1)
- User Manual (1)
- Original Earmuffs (various sizes)
2. Safety Warnings
- Do not immerse the product in water or any other liquid, as this product is not waterproof.
- If any liquid accidentally enters the product, immediately disconnect it and remove it from use.
- To avoid electric shock, ensure your hands are dry before installing or uninstalling the product.
3. Setup
3.1 Initial Charging
Before first use, fully charge the earphones and charging case. Connect the provided TYPE-C charging cable to the charging port on the case and a suitable power source. The charging case has a battery capacity of 300mAh, and each earphone has a 38mAh battery. A full charge takes approximately 1.5 hours, providing about 24 hours of total endurance with the charging case.
3.2 Power On/Off
- Power On: Open the charging case lid. The earphones will power on automatically.
- Power Off: Place the earphones back into the charging case and close the lid. The earphones will power off.
3.3 Bluetooth Pairing
When the earphones are powered on and out of the charging case, they will automatically enter pairing mode. Search for "Monster D02" in your device's Bluetooth settings and select it to connect. The earphones are equipped with intelligent dual-processing chips, allowing independent and synchronous connection of left and right earphones to reduce delays and automatically reconnect when opening the cover.
4. Operating Instructions
The Monster D02 earphones feature smart touch controls for various functions:
4.1 Music Playback
- Play/Pause: Double-click on any earphone.
- Previous Song: Triple-click on the left earphone.
- Next Song: Triple-click on the right earphone.
4.2 Binaural Calls
- Answer/End Call: Double-click any earphone.
- Reject Call: Long-press the earphone for 2 seconds.
- Volume Up: Single-click the right earphone.
- Volume Down: Single-click the left earphone.
4.3 ANC Mode (Active Noise Cancelling)
- Activate/Deactivate ANC: Long-press any earphone for 3 seconds.
- The earphones feature dual-feed ANC noise reduction, blocking up to 99.44% of external noise.
- They also support ENC call noise reduction with 4 microphones and AI algorithm for intelligent separation of ambient human voice.
4.4 Game/Music Dual Mode
- Switch Modes: Quadruple-click any earphone to switch between Game and Music modes.
- Game mode offers an exclusive low-latency gaming experience (45ms).
- Music mode provides balanced high, medium, and low frequencies for high-resolution sound quality.
4.5 Single Earphone Use
Both the left and right earphones are main units and can be used independently in mono mode without requiring reconnection.
5. Maintenance
5.1 Precautions
- Do not use the earphones in high-temperature or humid environments.
- Do not disassemble the earphones arbitrarily, as this may impair performance.
- Turn off the power (by placing them in the charging case and closing the lid) after use to extend battery life.
5.2 Cleaning
Gently wipe the earphones and charging case with a soft, dry, lint-free cloth. Do not use harsh chemicals or abrasive materials. Ensure the charging contacts are clean and dry.
6. Troubleshooting
- Cannot Connect:
- Restart your device (phone, tablet, etc.) or reset the Bluetooth settings on your device. Ensure the earphones are charged and in pairing mode.
- Intermittent Audio:
- Check the battery level of both earphones and the charging case. Move away from sources of strong signal interference (e.g., Wi-Fi routers, other Bluetooth devices).
- No Sound from Earphones:
- Verify that the earphones are correctly paired with your device. Ensure the audio output is enabled and the volume is turned up on both your device and the earphones.
7. Specifications
| Feature | Detail |
|---|---|
| Model | Monster Maxstar D02 |
| Material | Metal, ABS, Silica Gel |
| Bluetooth Version | 6.0 |
| Effective Distance | ≥10m |
| Speaker Diameter | 13mm |
| Speaker Impedance | 32Ω ±10% |
| Microphone Sensitivity | 115dB ±3dB |
| Frequency Response Range | 20Hz - 20kHz |
| Earphone Battery Capacity | 3.7V 38mAh |
| Charging Case Battery Capacity | 3.7V 300mAh |
| Endurance Time (with case) | Approx. 24 hours |
| Charging Time | Approx. 1.5 hours |
| Charging Port | Type-C |
| Earcups Type | Sealed |
| Max Output | 10mW |
| Noise Cancellation | Dual-feed ANC (up to 99.44% noise reduction), ENC for calls |
| Microphone | Yes (4 microphones for ENC) |
| Waterproof | No |
| Control Buttons | Yes (Touch controls) |
| Certification | CE |
8. User Tips
- Volume Control: If you desire very loud audio, ensure your device's volume is maximized and then adjust the earphone volume using the single-click right/left earphone controls.
- Comfortable Fit: Experiment with the different sizes of original earmuffs provided to find the best ergonomic fit for your ears. A good seal enhances sound quality and noise cancellation.
9. Warranty and Support
For detailed warranty information and customer support, please refer to the official Monster Audio Store website or contact their customer service. A comprehensive user manual in PDF format is also available for download:
This product is CE certified.