1. Introduction
Thank you for choosing the Monster MQT52 TWS Bluetooth 5.4 Earphones. These earphones are designed to provide a superior audio experience with advanced features such as Bluetooth 5.4 connectivity, low latency for gaming, high-definition call quality with noise reduction, and extended battery life. This manual will guide you through the setup, operation, and maintenance of your new earphones to ensure optimal performance.
2. Product Overview
The Monster MQT52 earphones combine cutting-edge technology with user-friendly design. Key features include:
- New Flagship Bluetooth 5.4: Ensures stable, low-power consumption, high bit rate transmission, reduced signal delay, and enhanced audio anti-interference performance for smooth connection and gaming.
- 0.08s Game Low Latency: Provides intimate synchronization of sound and image, allowing for accurate listening and positioning in games.
- HD Call Noise Reduction: Experience high-definition calling with clear and accurate filtering of environmental noise to retain clear target vocals.
- 24-hour Compound Endurance: Supports fast charging technology, offering up to 24 hours of comprehensive battery life with the charging case.
- Lightweight Design: Each earbud weighs only 4.4g, ensuring a comfortable fit without any sensation of weight.
- Unrestricted Compatibility: Widely compatible with Android, Apple iOS, Windows systems, and game consoles via Bluetooth.
- Immersive Listening Experience: Features Cinema Space Sound Effects, Dolby Atmos, and ACS 360° panoramic sound algorithm for stunning sound quality.
- 13mm PU+PEK Composite Diaphragm: Delivers powerful and clear audio.
- Worry-Free Touch Operation: Sensitive touch controls for easy management of music, calls, and voice assistant.

Figure 1: Ultimate Listening Experience with HD Call, Bluetooth 5.4, and Cinema Space Sound Effects

Figure 2: New Flagship Bluetooth 5.4 Technology
3. Specifications
Below are the detailed specifications for the Monster MQT52 TWS Bluetooth 5.4 Earphones:

Figure 3: Monster MQT52 Product Parameters
| Feature | Specification |
|---|---|
| Product Model | Monster Maxstar MQT52 |
| Bluetooth Version | 5.4 |
| Bluetooth Effective Range | ≥ 10 meters |
| Speaker Unit | 13mm |
| Charging Port | Type-C |
| Whole Machine Sensitivity | 116dB ±1.5dB |
| Frequency Response Range | 20 - 20000Hz |
| Comprehensive Battery Life | About 24 hours |
| Earphone Battery Capacity | 38mAh |
| Charging Compartment Battery Capacity | 300mAh |
| Charging Time | About 1.5 hours |
| Material | PVC |
| Number Of Drivers | 2 |
| Charging Method | Charging case |
| Impedance Range | up to 32 Ω |
| With Microphone | Yes |
| Is Wireless | Yes |
| Waterproof | No |
| Active Noise-Cancellation | No |
| Volume Control | Yes |
| Control Button | No (Touch controls) |
| Vocalism Principle | Balanced Armature |
| Wireless Type | Bluetooth |
| Communication | True wireless |
| Style | TWS In-ear headphones |
| Certification | CE |
| Origin | Mainland China |
4. Package Contents
Upon opening your Monster MQT52 package, you should find the following items:
- Monster MQT52 TWS Earphones (Left and Right)
- Charging Case
- User Manual
- Charging Cable (Type-C)
- Ear Tips (3 pairs: Small, Medium, Large)
Video 1: Unboxing and overview of Monster MQT52 TWS Earphones and accessories.
5. Setup Guide
5.1 Initial Charging
- Before first use, place both earphones into the charging case.
- Connect the provided Type-C charging cable to the charging port on the case and a suitable USB power source.
- The indicator light on the charging case will show charging status. Ensure the earphones and case are fully charged for optimal performance.
5.2 Ear Tip Selection
Choosing the correct ear tip size is crucial for comfort, sound quality, and secure fit. The package includes three sizes (S, M, L).
- Try each size to find the one that creates a snug seal in your ear canal.
- A good seal will enhance bass response and passive noise isolation.

Figure 4: Skin-friendly antibacterial ear caps in S, M, L sizes.
5.3 Pairing with Your Device
The Monster MQT52 earphones are designed for quick and seamless connection.
- Power On: Open the charging case. The earphones will automatically power on and enter pairing mode.
- Activate Bluetooth: On your device (smartphone, tablet, computer, game console), enable Bluetooth.
- Select Device: Look for "Monster MQT52" in the list of available Bluetooth devices and select it to connect.
- Confirmation: Once connected, you will hear an audio prompt, and the indicator light on the earphones may change.

Figure 5: Open charging case to automatically connect and use.

Figure 6: Unrestricted connection and versatile compatibility across various operating systems and devices.
6. Operating Instructions
6.1 Touch Controls
The Monster MQT52 earphones feature sensitive touch controls for easy management:

Figure 7: Worry-free touch and quick operation controls.
- Music Mode Switching: Long press for 2 seconds on the Right earbud.
- Game Mode Switching: Long press for 2 seconds on the Left earbud.
- Play/Pause: Double click on either the Left or Right earbud.
- Answer/Hang Up Call: Double click on either the Left or Right earbud.
- Reject Call: Long press for 2 seconds on either the Left or Right earbud.
- Activate Voice Assistant: Long press for 2 seconds on the Left earbud.
- Switch Up/Down Songs: Triple click on the Left earbud for previous song, triple click on the Right earbud for next song.
6.2 Gaming Experience
Leverage the 0.08s low latency for an immersive gaming experience. Ensure you are in Game Mode for optimal performance.

Figure 8: 0.08s game low latency for quick response and seizing opportunities.
6.3 Call Management
The HD Call Noise Reduction ensures clear communication even in noisy environments.

Figure 9: High definition call noise reduction for precise and clear sound.
6.4 Power Off
To power off the earphones, simply place them back into the charging case and close the lid. They will automatically disconnect and begin charging.
7. Maintenance
To ensure the longevity and optimal performance of your Monster MQT52 earphones, follow these maintenance guidelines:
- Cleaning: Regularly clean the earphones and charging case with a soft, dry, lint-free cloth. Do not use harsh chemicals or abrasive materials.
- Ear Tips: Remove and clean the ear tips periodically with mild soap and water. Ensure they are completely dry before reattaching.
- Charging Contacts: Gently clean the charging contacts on both the earphones and the case with a dry cotton swab to prevent charging issues.
- Storage: When not in use, store the earphones in their charging case to protect them from dust and damage.
- Avoid Water: The earphones are not waterproof. Avoid exposure to water, moisture, or extreme temperatures.
8. Troubleshooting
If you encounter any issues with your Monster MQT52 earphones, refer to the following common problems and solutions:
- Earphones not pairing:
- Ensure both earphones are in the charging case and fully charged.
- Open the case lid to activate pairing mode.
- Turn off and on your device's Bluetooth.
- Forget the device from your Bluetooth list and try pairing again.
- Only one earphone working:
- Place both earphones back into the charging case, close the lid, and then open it again.
- Ensure both earphones have sufficient battery.
- Try resetting the earphones (refer to the full user manual if available for specific reset instructions).
- Poor sound quality or weak bass:
- Ensure the ear tips are the correct size and create a good seal in your ear.
- Clean any debris from the earphone nozzles.
- Ensure your device is within the effective Bluetooth range (10 meters) and there are no significant obstructions.
- Earphones not charging:
- Check the charging cable and power adapter.
- Clean the charging contacts on both the earphones and the case.
- Ensure the charging case itself has power.
- Touch controls not responding:
- Ensure your fingers are clean and dry.
- Try restarting the earphones by placing them in the case and taking them out again.
9. User Tips
- Optimal Fit: Experiment with all three sizes of ear tips to find the most comfortable and secure fit. A proper seal significantly improves audio quality, especially bass.
- Gaming Mode: For competitive gaming, always activate Game Mode (long press Left earbud for 2 seconds) to benefit from the ultra-low latency.
- Battery Management: For extended use, keep the charging case topped up. A quick 15-minute charge can provide 1.5 hours of music playback.
- Connectivity: While the earphones offer wide compatibility, ensure your device's Bluetooth is up-to-date for the best connection stability.
10. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the official Monster website or contact your retailer. Keep your purchase receipt as proof of purchase.





