1. Introduction
Welcome to the user manual for your Monster Achieve 100 AirLinks Wireless Earbuds. These earbuds are designed to provide a high-quality audio experience with features such as Pure Monster Sound, Bluetooth 5.0 connectivity, and a water-resistant design, making them suitable for various activities including sports. This manual provides detailed instructions on how to set up, operate, and maintain your earbuds, along with troubleshooting tips and product specifications.
2. Package Contents
Please verify that all items listed below are included in your package:
- Monster Achieve 100 AirLinks Wireless Earbuds (Left and Right)
- Charging Case
- USB-C Charging Cable
- Multiple Sizes of Ear Tips (Small, Medium, Large)
- User Manual

Image: Package contents showing the earbuds, charging case, USB-C cable, and various ear tip sizes.
3. Product Overview
The Monster Achieve 100 AirLinks earbuds are designed for comfort and high-fidelity audio. Each earbud features a multi-function touch control area and an ergonomic design for a secure fit.
Earbud Components
- Multi-Function Touch Control Area: For playback, call management, and voice assistant activation.
- LED Indicator: Displays pairing and battery status.
- Microphone: For clear calls.
- Charging Contacts: For charging within the case.
- Ear Tip: Replaceable silicone tips for comfortable and secure fit.
Charging Case Components
- Earbud Charging Slots: Securely holds and charges the earbuds.
- Case LED Indicators: Shows the charging status and battery level of the case.
- USB-C Charging Port: For charging the case.

Image: The Monster Achieve 100 AirLinks earbuds and their charging case, illustrating their design.

Image: Illustration demonstrating the comfortable and snug fit of the earbuds, along with the included small, medium, and large ear tips.
4. Setup
4.1 Charging Your Earbuds and Case
Before first use, fully charge both the earbuds and the charging case.
- Charging Earbuds: Place the earbuds into the charging case. Ensure the charging contacts align. The earbud LED indicators will show charging status.
- Charging Case: Connect the USB-C charging cable to the charging port on the case and plug the other end into a USB power source (e.g., wall adapter, computer USB port). The case LED indicators will illuminate to show charging progress.
The earbuds feature a super fast charge capability, providing approximately 2 hours of playback from just 10 minutes of charging when placed in the case.

Image: Earbuds being charged inside their case, highlighting the 24-hour total playtime with the charging case.
4.2 Pairing with Your Device
The Monster Achieve 100 AirLinks earbuds support one-step pairing for quick and easy connection.
- Ensure the earbuds are charged.
- Open the charging case. The earbuds will automatically enter pairing mode, and their LED indicators will flash.
- On your Bluetooth-enabled device (smartphone, tablet, computer), go to the Bluetooth settings.
- Search for and select "Achieve 100 AirLinks" from the list of available devices.
- Once connected, the earbud LED indicators will stop flashing, and you will hear a confirmation tone.
The earbuds will automatically reconnect to the last paired device when taken out of the case, provided Bluetooth is enabled on the device.
4.3 Using a Single Earbud
You can use either the left or right earbud independently. Simply take one earbud out of the case, and it will automatically connect to your device if previously paired. The other earbud can remain in the case or be used later.

Image: Visual representation of the one-step pairing process with a smartphone.
5. Operating Instructions
The Monster Achieve 100 AirLinks earbuds feature intuitive touch controls for managing audio playback, calls, and voice assistant functions.
5.1 Touch Control Functions
| Action | Left Earbud | Right Earbud |
|---|---|---|
| Power On | Take out of charging case | |
| Power Off | Place into charging case | |
| Play/Pause | Single tap | |
| Next Track | Double tap | Double tap |
| Previous Track | Triple tap | Triple tap |
| Volume Up | N/A (Adjust on device) | Long press (approx. 2s) |
| Volume Down | Long press (approx. 2s) | N/A (Adjust on device) |
| Answer/End Call | Single tap during incoming call / during call | |
| Reject Call | Long press (approx. 2s) during incoming call | |
| Activate Voice Assistant | Double tap (when not on a call) | |

Image: Visual guide to the touch control functions on the earbud.
5.2 Making and Receiving Calls
The earbuds feature a built-in microphone for clear calls. Use the touch controls as described above to manage your calls.
5.3 Voice Assistant
Double-tapping the multi-function button will activate your device's voice assistant (e.g., Siri, Google Assistant), allowing you to issue commands hands-free.
6. Maintenance
6.1 Cleaning
To maintain optimal performance and hygiene, regularly clean your earbuds and charging case:
- Use a soft, dry, lint-free cloth to wipe the earbuds and charging case.
- Gently clean the charging contacts on both the earbuds and inside the case to ensure proper charging.
- Remove ear tips and clean them with mild soap and water, then dry thoroughly before reattaching.
- Do not use harsh chemicals, cleaning solvents, or strong detergents.
6.2 Storage
When not in use, always store the earbuds in their charging case to protect them from dust, damage, and to keep them charged.
6.3 Water Resistance
The Monster Achieve 100 AirLinks earbuds are water-resistant, making them suitable for workouts and light rain. However, they are not designed for submersion in water. Avoid exposing them to excessive moisture, sweat, or liquids for prolonged periods. Ensure the earbuds are dry before placing them back into the charging case to prevent damage.

Image: The earbuds shown with water splashes, indicating their water-resistant design.
7. Troubleshooting
If you encounter issues with your Monster Achieve 100 AirLinks earbuds, try the following solutions:
- Earbuds not pairing:
- Ensure both earbuds are charged.
- Place both earbuds back into the charging case, close the lid, wait a few seconds, then open the lid again.
- Turn off Bluetooth on your device, then turn it back on.
- Forget "Achieve 100 AirLinks" from your device's Bluetooth list and re-pair.
- No sound from one earbud:
- Ensure both earbuds are charged and properly connected to your device.
- Try placing both earbuds back in the case and taking them out again.
- Clean the charging contacts on the earbud and inside the case.
- Charging issues:
- Ensure the USB-C cable is securely connected to both the case and the power source.
- Try a different USB-C cable or power adapter.
- Clean the charging port on the case and the charging contacts on the earbuds.
- Low volume or poor sound quality:
- Adjust the volume on your connected device.
- Ensure the ear tips are properly seated in your ears for a good seal. Try different sized ear tips.
- Clean any debris from the earbud speaker mesh.
8. Specifications
| Feature | Specification |
|---|---|
| Model Name | Achieve 100 |
| Item Model Number | MH11901 |
| Connectivity Technology | Bluetooth 5.0, Wireless |
| Wireless Communication Technology | Bluetooth |
| Noise Control | Active Noise Cancellation |
| Battery Life (Earbuds) | Up to 4.3 Hours |
| Battery Life (with Charging Case) | Up to 24 Hours |
| Charging Port | USB-C |
| Water Resistance Level | Water Resistant |
| Frequency Range | 20~20000Hz |
| Impedance | 120 Ohm |
| Control Type | Touch, Voice Control |
| Item Weight | 5.3 ounces |
| Product Dimensions | 1 x 1 x 1 inches (Earbud, approximate) |
| Manufacturer | Monster |
| UPC | 850015401756 |
9. Safety Information
Please read and follow these safety guidelines to ensure safe operation and prevent damage to your device:
- Do not expose earbuds or charging case to extreme temperatures (hot or cold).
- Avoid prolonged listening at high volumes to prevent hearing damage.
- Do not use earbuds in situations where inability to hear ambient sounds could be dangerous (e.g., driving, cycling, walking in traffic).
- Keep out of reach of children and pets. Small parts may pose a choking hazard.
- Do not attempt to disassemble or modify the product. This will void the warranty and may cause damage.
- Use only the provided or certified charging cables and adapters.
10. Warranty and Support
For warranty information, please refer to the documentation included with your purchase or visit the official Monster website. If you require technical support or have questions not covered in this manual, please contact Monster customer service through their official channels.
You can visit the official Monster store for more information: Monster Official Store







