Introduction
Thank you for choosing Monster Wireless Earbuds. This manual provides detailed instructions on how to set up, operate, and maintain your new earbuds. Please read this manual thoroughly before use to ensure optimal performance and longevity of your device.

Image: Monster Wireless Earbuds and their charging case, showcasing the sleek design.
Package Contents
Ensure all items are present in the package:
- Monster Wireless Earbuds (Left and Right)
- Charging Case
- USB-C Charging Cable
- Multiple Sizes of Ear Tips (S, M, L)
- User Manual (this document)
- Quick Start Guide

Image: A visual representation of all items included in the Monster Wireless Earbuds package, including earbuds, charging case, USB-C cable, ear tips, and documentation.
Setup
1. Charging the Earbuds and Case
Before first use, fully charge the earbuds and the charging case.
- Place both earbuds into the charging case. Ensure they are properly seated; the indicator lights on the earbuds will illuminate.
- Connect the USB-C charging cable to the charging port on the case and the other end to a USB power source (e.g., computer, wall adapter).
- The indicator lights on the charging case will show charging status. A full charge typically takes approximately 1.5 hours for the earbuds and 2 hours for the case.
Note:
- Remove the insulating film from the earbuds before charging for the first time.
- A 5-minute quick charge provides up to 1 hour of playtime.
- The charging case provides up to 24 additional hours of playtime, extending total playtime to 32 hours.

Image: The Monster Wireless Earbuds in their charging case, illustrating the charging process and highlighting the quick charge feature.
2. Pairing with Your Device
The earbuds use advanced Bluetooth 5.3 technology for a stable and low-latency connection.
- Ensure the earbuds are charged and placed in the charging case.
- Open the charging case. The earbuds will automatically enter pairing mode.
- On your device (smartphone, tablet, laptop), go to Bluetooth settings and enable Bluetooth.
- Search for available devices and select "Monster Achieve 300 AirLinks" from the list.
- Once connected, you will hear a confirmation tone, and the earbuds will be ready for use.
Note:
- The earbuds will automatically reconnect to the last paired device when taken out of the case, if Bluetooth is enabled on the device.

Image: A diagram illustrating the Bluetooth 5.3 pairing process between the Monster Wireless Earbuds and a smartphone, showing the earbuds connecting automatically.
3. Wearing the Earbuds
For optimal sound quality and comfort, ensure the earbuds are worn correctly.
- Identify the Left (L) and Right (R) earbuds.
- Gently insert the earbud into your ear canal and twist it slightly to secure a snug fit.
- Experiment with different ear tip sizes to find the best fit for your ears. A proper seal is crucial for bass response and noise isolation.
Important:
Incorrect wearing can lead to poor sound quality, especially during calls. Ensure the earbud is seated firmly in your ear.

Image: A visual guide demonstrating the correct and incorrect ways to wear the Monster Wireless Earbuds for optimal sound and comfort.
Operating Instructions
Smart Touch Controls
The earbuds feature intuitive touch controls for easy management of music and calls.
| Action | Function |
|---|---|
| Tap once (either earbud) | Play/Pause music, Answer/End call |
| Double tap (Right earbud) | Next Track |
| Double tap (Left earbud) | Previous Track |
| Hold (Right earbud) | Volume Up |
| Hold (Left earbud) | Volume Down |
| Triple tap (either earbud) | Activate Voice Assistant |
| Hold for 2 seconds during call | Reject call |

Image: A circular diagram illustrating all touch control functions for the Monster Wireless Earbuds, including play/pause, volume, track skipping, and call management.
Audio Quality and Microphones
The earbuds are equipped with 10mm drivers for deep bass and clear sound. Built-in microphones with ENC (Environmental Noise Cancellation) technology ensure clear hands-free calling.

Image: An exploded view diagram of the earbud's internal components, highlighting the 10mm titanium diaphragm dynamic driver for superior sound quality.

Image: A man wearing the Monster Wireless Earbuds, with text indicating that built-in microphones combined with ENC technology provide crisp voice for calls.
Maintenance
Cleaning
Regular cleaning helps maintain sound quality and hygiene.
- Use a soft, dry, lint-free cloth to wipe the earbuds and charging case.
- For ear tips, remove them from the earbuds and clean with a mild soap solution, then rinse thoroughly and dry completely before reattaching.
- Do not use abrasive cleaners, alcohol, or chemical solvents.
Storage
When not in use, store the earbuds in their charging case to protect them and keep them charged.
- Store in a cool, dry place, away from extreme temperatures and direct sunlight.
Water Resistance (IPX6)
The earbuds are designed with an IPX6 water-resistant rating, making them suitable for workouts and light rain.
- IPX6 rating means they can withstand high-pressure water jets, but they are not designed for submersion.
- Do not use them while swimming or showering.
- Ensure earbuds are dry before placing them back into the charging case to prevent damage.

Image: An illustration depicting the IPX6 waterproof rating of the earbuds, showing water splashing on them.
Troubleshooting
If you encounter issues with your Monster Wireless Earbuds, try the following solutions:
| Problem | Solution |
|---|---|
| Earbuds not pairing/connecting |
|
| No sound or low volume |
|
| Earbuds not charging |
|
| Microphone not working/poor call quality |
|
Specifications
| Feature | Detail |
|---|---|
| Model Name | MH12005 |
| Connectivity Technology | Wireless (Bluetooth 5.3) |
| Driver Size | 10mm |
| Control Type | Touch Control |
| Water Resistance Rating | IPX6 |
| Playtime (Single Charge) | Up to 8 hours |
| Total Playtime with Charging Case | Up to 32 hours |
| Charging Port | USB-C |
| Fast Charging | 5 minutes charge for 1 hour playtime |
| Microphone | Built-in with ENC technology |
| Weight | 40 Grams (total item weight) |
| Battery Composition | Lithium Polymer |
| Compatible Devices | Cellphones, Tablets, Laptops |
| Impedance | 30 Ohm |
Warranty and Support
Monster products are designed for durability and performance. For warranty information and technical support, please refer to the warranty card included in your package or visit the official Monster website.
If you require further assistance, please contact Monster customer service with your product model number (MH12005) and purchase details.





