1. Introduction
The Monster Maxstar MQ018 Open Ear Bluetooth Headphones offer a unique listening experience with their open-ear design, allowing you to stay aware of your surroundings while enjoying high-quality audio. Featuring the latest Bluetooth 5.4 technology, AI noise cancellation for calls, and a long-lasting battery, these headphones are designed for comfort and performance in various activities.
This manual provides detailed instructions on how to set up, operate, and maintain your Monster Maxstar MQ018 headphones.
2. Package Contents
Please check the package for the following items:
- Monster Maxstar MQ018 Open Ear Bluetooth Headphones (Left and Right earbuds)
- Charging Case
- USB Type-C Charging Cable
- User Manual
Note: The charging cable is located beneath the earbud tray in the packaging.
3. Setup and Initial Use
3.1 Charging the Headphones and Case
Before first use, ensure both the earbuds and the charging case are fully charged.
- Place both earbuds into the charging case. Ensure they are correctly seated.
- Connect the USB Type-C charging cable to the charging port on the case and plug the other end into a compatible USB power source.
- The LED indicator on the charging case will show charging status. A full charge typically takes 1-2 hours for the case and 1-1.5 hours for the earbuds.

Figure 2: Headphones in Charging Case
3.2 Initial Bluetooth Pairing
For the first-time connection, follow these steps:
- Ensure your device's Bluetooth is turned on.
- Open the charging case and take out both earbuds simultaneously. Do not take out only one earbud.
- Wait for the LED indicator on only one of the earbuds to flash. This indicates it's ready for pairing. If both are flashing, wait until only one is.
- On your device (smartphone, tablet, etc.), go to Bluetooth settings and search for "Monster Maxstar MQ018" in the list of available devices.
- Select "Monster Maxstar MQ018" to connect. Once connected, the LED indicator on the earbud will stop flashing.
Video 1: Unboxing and Initial Pairing Guide for Monster Maxstar MQ018. This video demonstrates how to unpack the headphones, locate the charging cable and manual, and perform the initial Bluetooth pairing by taking both earbuds out simultaneously and connecting via your phone's Bluetooth settings.
After the initial pairing, the headphones will automatically reconnect to the last paired device when taken out of the charging case.
4. Operating the Headphones
4.1 Power On/Off
- Power On: The earbuds will automatically power on when removed from the charging case.
- Power Off:
- Place both earbuds back into the charging case and close the lid. They will automatically power off.
- If not using the charging case, long press the touch area on either earbud for 5 seconds to manually power off.
4.2 Touch Controls
The Monster Maxstar MQ018 headphones feature intuitive touch controls on each earbud. Refer to the diagram below for touch area location.

Figure 3: Earbud Components and Touch Areas
| Action | Function | Earbud (L/R) |
|---|---|---|
| Double Click | Phone Answer/Hang Up | L/R |
| Long Press 2 seconds | Reject Calls | L/R |
| Double Click | Music Play/Pause | L/R |
| Triple Click | Previous Song | R |
| Triple Click | Next Song | L |
| Single Click | Volume+ | R |
| Single Click | Volume- | L |
| Long Press 2 seconds | Voice Assistant (Siri/Google Assistant) | L |
| Long Press 2 seconds | Switching music/game modes | R |
4.3 Key Features
- Bluetooth 5.4 Technology: Ensures a fast, stable, and low-latency connection for perfectly synced audio and video.

Figure 4: Bluetooth 5.4 Technology
- Smart AI Noise Cancellation: Effectively reduces environmental noise during calls, ensuring clear conversations even in noisy environments.

Figure 5: Smart AI Noise Cancellation
- Directional Acoustic: An innovative sound focusing hole combined with inverse acoustic wave cancellation technology ensures accurate and efficient sound transmission while protecting your privacy.

Figure 6: Directional Acoustic
- Pure Monster Sound: Equipped with 14.2mm titanium PU vibrating diaphragm speaker drivers for balanced audio, deep bass, and clear high-frequency output.

Figure 7: Pure Monster Sound Driver
- IPX4 Waterproof: Designed to withstand sweat and raindrops, making them suitable for various activities like sports, running, cycling, biking, workouts, walking, exercise, fitness, and hiking.
Note: Not suitable for swimming. The charging case is NOT waterproof.

Figure 8: IPX4 Waterproof
- Long Battery Life: Up to 7 hours of playtime on a single charge, with the charging case providing an additional charge for a total of approximately 24 hours of playtime.
- Comfortable Wearing: Features skin-friendly silicone and a craftsmanship one-piece molding for a comfortable and secure fit that is not easy to fall off.

Figure 9: Comfortable Wearing
- Be Aware of Surroundings: The open-ear design allows you to hear ambient sounds, enhancing safety during outdoor activities by keeping you aware of your environment.

Figure 10: Awareness of Surroundings
- Wide Compatibility: Compatible with various Bluetooth-enabled devices, including tablets, cell phones, and laptops.

Figure 11: Wide Compatibility
5. Maintenance
- Cleaning: Regularly wipe the earbuds and charging case with a soft, dry, lint-free cloth. Avoid using harsh chemicals or abrasive materials.
- Water Exposure: While IPX4 waterproof, avoid submerging the earbuds in water. Dry them thoroughly if they get wet from sweat or rain before placing them back in the charging case. The charging case is NOT waterproof.
- Storage: When not in use, store the headphones in their charging case to protect them from dust and damage.
- Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the headphones regularly, even if not used for extended periods.
6. Troubleshooting
If you encounter any issues with your Monster Maxstar MQ018 headphones, please refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Headphones do not pair with device. | Incorrect pairing procedure, out of range, low battery. |
|
| No sound or low volume. | Volume too low, improper fit, connection issue. |
|
| Connection drops frequently. | Interference, distance, low battery. |
|
| Earbuds not charging in case. | Improper placement, dirty charging contacts, case battery low. |
|
7. Specifications
| Feature | Detail |
|---|---|
| Brand Name | MONSTER |
| Model | MQ018 |
| Style | Open-ear headphones (True wireless) |
| Material | ABS, Plastic |
| Bluetooth Version | 5.4 |
| Wireless Type | Bluetooth |
| Communication | True wireless |
| Maximum Wireless Range | 10m-20m (approx. 10m without obstruction) |
| Driver Diameter | 14.2mm |
| Vocalism Principle | Dynamic |
| Frequency Response Range | 20 - 20000Hz |
| Impedance Range | up to 32 Ω |
| Resistance | 32 Ω |
| Sensitivity | 110dB |
| Headset Battery Capacity | 50mAh |
| Charging Case Battery Capacity | 270mAh |
| Battery Life (single charge) | Up to 7 hours (play time), 6 hours (talk time) |
| Total Playtime (with charging case) | Up to 24 hours |
| Headset Charging Time | 1-1.5 hours |
| Charging Case Charging Time | 1-2 hours |
| Waterproof Rating | IPX4 (earbuds only) |
| Sound Isolating | Yes |
| With Microphone | Yes |
| Volume Control | Yes |
| Control Button | Yes |
| Codecs | AAC, SBC |
| Functions | For Video Game, Common Headphone, For Mobile Phone, For Powersports, HiFi Headphone, Sport, For Outdoor, For Office, For Study |
| Package List | User Manual, Charging case, Charging Cable |
8. User Tips
- Optimal Fit: Experiment with the placement of the open-ear hooks to find the most comfortable and secure fit for your ears. A good fit ensures optimal sound delivery and stability during movement.
- Awareness in Use: Remember that the open-ear design allows ambient sound. Adjust your volume accordingly in different environments to balance audio enjoyment with situational awareness.
- Call Clarity: For the best call quality, especially in noisy environments, ensure the microphones are not obstructed and consider using the AI Noise Cancellation feature.
- Game Mode: If you're a gamer, activate the dedicated game mode (long press right earbud for 2 seconds) for reduced audio latency and a more synchronized gaming experience.
9. Support
For further assistance, technical support, or warranty information, please contact the official Monster support channels or your retailer.






