Introduction
Thank you for choosing the Monster Open Ear AC510 Earbuds. This manual provides detailed instructions on how to set up, operate, maintain, and troubleshoot your new wireless earbuds. Please read this manual thoroughly before use to ensure optimal performance and longevity of your device.
Product Overview
The Monster Open Ear AC510 Earbuds are designed for comfort and high-quality audio, featuring an open-ear design, Bluetooth 6.0 connectivity, AI intelligent noise reduction, and IPX6 waterproofing.
Package Contents
- Monster Open Ear AC510 Earbuds (L/R)
- Charging Case
- USB-C Charging Cable
- Lanyard
- Quick Start Guide

Image: All components included in the Monster Open Ear AC510 Earbuds package.
Setup
1. Charging the Earbuds and Case
Before first use, fully charge the earbuds and the charging case. Connect the USB-C charging cable to the charging port on the case and a power source. The indicator lights on the case will show the charging status. A full charge for the case takes approximately 2 hours, providing up to 30 hours of total playback time with the earbuds.
- Earbuds Playtime: Up to 6 hours on a single charge.
- Total Playtime with Charging Case: Up to 30 hours.

Image: Battery life and charging duration details for the earbuds and charging case.
2. Bluetooth Pairing
To pair your Monster Open Ear AC510 Earbuds with your device:
- Ensure the earbuds are charged.
- Open the charging case. The earbuds will automatically enter pairing mode, indicated by a flashing light.
- On your device (smartphone, tablet, laptop), go to Bluetooth settings.
- Search for "Monster Open Ear AC510" in the list of available devices.
- Select it to connect. Once connected, a voice prompt will confirm the successful pairing, and the earbud lights will turn off or show a steady light.

Image: Bluetooth 6.0 quick connect process with a smartphone.
Operating Instructions
1. Wearing the Earbuds
The Monster Open Ear AC510 earbuds feature a 360° biomimetic fit and are made of liquid skin-friendly silicone. To ensure the best wearing comfort and sound quality:
- Gently place the earbud onto your ear.
- Rotate the earbud slightly to adjust it for a comfortable and secure fit. The ear pressure sensing technology will automatically adjust the fit.

Image: Step-by-step guide on how to wear the Monster Open Ear AC510 earbuds.
2. Touch Controls
The earbuds feature smart touch controls for easy management of calls and music playback:
| Action | Control |
|---|---|
| Answer/End Call | Click 2 times (L/R) |
| Reject Call | Long tap 2 seconds (L/R) |
| Voice Assistant | Long tap 2 seconds (L/R) |
| Volume + | Click 1 time (R) |
| Volume - | Click 1 time (L) |
| Play/Pause | Click 2 times (L/R) |
| Previous Track | Click 3 times (L) |
| Next Track | Click 3 times (R) |

Image: Comprehensive guide to the touch controls on the Monster Open Ear AC510 earbuds.
Maintenance
Cleaning and Care
- Regularly clean the earbuds and charging case with a soft, dry, lint-free cloth.
- Do not use abrasive cleaners, alcohol, or chemical solvents.
- Keep the charging contacts on both the earbuds and the case clean to ensure proper charging.
Water Resistance (IPX6)
The Monster Open Ear AC510 Earbuds are IPX6 waterproof, meaning they are protected against powerful water jets. This makes them suitable for use during workouts and in light rain. However, they are not designed for submersion in water.
- Avoid prolonged exposure to water.
- Do not use them while swimming or showering.
- Ensure earbuds are dry before placing them back in the charging case to prevent damage.

Image: IPX6 waterproof capabilities, highlighting resistance to rain, sweat, and splashes.
Troubleshooting
If you encounter issues with your earbuds, please refer to the following common solutions:
No Sound / Disconnection
- Ensure earbuds are charged.
- Check Bluetooth connection on your device. Try turning Bluetooth off and on again.
- Move closer to your device to avoid interference.
- Try re-pairing the earbuds with your device.
Earbuds Not Charging
- Ensure the charging case is charged.
- Check that the earbuds are correctly seated in the charging case.
- Clean the charging contacts on both the earbuds and the case with a dry cotton swab.
- Try a different USB-C cable and power adapter.
Touch Controls Not Responding
- Ensure your fingers are clean and dry when touching the control area.
- Restart the earbuds by placing them in the case and closing it, then taking them out again.
Specifications
| Feature | Detail |
|---|---|
| Model Name | MH22227 |
| Connectivity Technology | Wireless (Bluetooth 6.0) |
| Ear Placement | Open Ear |
| Control Method | Touch |
| Water Resistance Level | IPX6 |
| Noise Control | Adaptive Noise Cancellation (AI Intelligent Noise Reduction) |
| Material | Silicone |
| Item Weight | 5.3 ounces |
| Manufacturer | Monster |
Warranty and Support
Monster products are built with quality and reliability in mind. For warranty information and customer support, please refer to the warranty card included in your product packaging or visit the official Monster website. If you experience any issues not covered in this manual, please contact Monster customer service for assistance.
For further assistance, you may visit the Monster Store on Amazon.





