Introduction
Thank you for choosing Monster Wireless Earbuds. This manual provides essential information for setting up, operating, and maintaining your earbuds to ensure optimal performance and longevity. Please read this manual thoroughly before use.

Image: Monster Wireless Earbuds, black with gold accents, resting in their open charging case. One earbud is shown outside the case.
Setup
1. Charging the Earbuds and Case
Before first use, fully charge the earbuds and the charging case. Connect the provided USB-C cable to the charging port on the case and to a power source. The indicator lights on the case will show the charging status.
- Ensure the earbuds are properly seated in the charging case.
- A full charge typically takes approximately 1.5-2 hours for the case and earbuds.
2. Bluetooth Pairing
The earbuds will automatically enter pairing mode when removed from the charging case for the first time. If they have been previously paired, they will attempt to reconnect to the last connected device.
- Open the charging case and remove both earbuds.
- On your device (smartphone, tablet, etc.), enable Bluetooth.
- Search for "Monster Achieve 300 AirLinks" (or similar name) in the list of available Bluetooth devices.
- Select the earbuds to connect. A voice prompt will confirm successful pairing.

Image: A smartphone screen displaying Bluetooth settings, showing "Monster Achieve 300 AirLinks" as a connected device, illustrating the Bluetooth 5.3 fast and stable connection feature.
For subsequent uses, the earbuds will automatically connect to your device once removed from the case, provided Bluetooth is enabled on your device.
Operating Instructions
Smart Touch Control
Your Monster Wireless Earbuds feature intuitive touch controls on each earbud for managing audio playback and calls. The touch-sensitive area is located on the outer surface of each earbud.

Image: A circular diagram illustrating the various smart touch control functions on the earbud, including Volume +, Volume -, Previous Track, Next Track, Voice Assistant, Play/Pause, Answer, and Hang Up.
| Action | Function |
|---|---|
| Single Tap (L/R) | Play/Pause music, Answer/End call |
| Double Tap (L) | Previous Track |
| Double Tap (R) | Next Track |
| Triple Tap (L) | Volume Down |
| Triple Tap (R) | Volume Up |
| Long Press (2s) (L/R) | Activate Voice Assistant (Siri, Google Assistant) |
| Long Press (2s) during incoming call | Reject Call |
Microphones and Noise Cancelling
The earbuds are equipped with built-in microphones combined with Environmental Noise Cancellation (ENC) technology. This technology helps to reduce ambient noise during calls, providing clearer voice transmission.

Image: A person wearing the Monster Wireless Earbuds, demonstrating their in-ear fit and highlighting the built-in microphones with ENC technology for crisp voice calls.
Maintenance
Cleaning and Care
To maintain the performance and hygiene of your earbuds, regular cleaning is recommended.
- Gently wipe the earbuds and charging case with a soft, dry, lint-free cloth.
- For ear tips (made of silicone), remove them and clean with a damp cloth and mild soap if necessary, then dry thoroughly before reattaching.
- Avoid using abrasive materials, alcohol, or chemical cleaners.
- Keep the charging contacts on both the earbuds and the case clean and free of debris.
Battery Life and Charging Tips
Your earbuds offer extended playtime with the charging case.

Image: A graphic illustrating the battery life of the Monster Wireless Earbuds, showing 8 hours of playtime on a single charge and a total of 32 hours with the charging case. It also highlights fast charging via Type-C.
- Single Charge Playtime: Up to 8 hours.
- Total Playtime with Charging Case: Up to 32 hours.
- Fast Charging: 10 minutes of Type-C charging provides approximately 120 minutes of playtime.
- Store the earbuds in their charging case when not in use to protect them and keep them charged.
- Avoid exposing the earbuds or case to extreme temperatures, humidity, or liquids.
Troubleshooting
If you encounter any issues with your Monster Wireless Earbuds, please refer to the following common solutions:
| Problem | Possible Solution |
|---|---|
| Earbuds not pairing/connecting |
|
| Only one earbud playing sound |
|
| Low volume or poor sound quality |
|
| Earbuds not charging |
|
| Touch controls not responding |
|
Specifications
Detailed technical specifications for your Monster Wireless Earbuds:
| Feature | Detail |
|---|---|
| Model Name | MH12005 |
| Connectivity Technology | Wireless (Bluetooth 5.3) |
| Ear Placement | In Ear |
| Form Factor | In Ear |
| Noise Control | None (Features Environmental Noise Cancellation for calls) |
| Material | Silicone (for ear tips) |
| Compatible Devices | Bluetooth-enabled devices |
| Water Resistance Level | Water Resistant |
| Frequency Range | 20 Hz - 20,000 Hz |
| Impedance | 30 Ohm |
| Driver Size | 10mm Titanium Diaphragm Dynamic Driver |
| Colour | Black Gold |
| Batteries | Rechargeable (included) |
| Manufacturer | Jonter |
| Item Dimensions (Parcel) | 10.39 x 9.09 x 4.19 cm; 109 g |

Image: An exploded diagram of the earbud's internal components, emphasizing the 10mm titanium diaphragm dynamic driver, which provides natural sound with deep bass.
Warranty and Support
For warranty information and customer support, please refer to the documentation included with your purchase or visit the official Monster website. Keep your proof of purchase for warranty claims.
If you require further assistance, please contact Monster customer service through their official channels.
Note: Specific warranty terms and conditions may vary by region and retailer.





