Introduction
Welcome to the Monster Open Ear AC600 Headphones user manual. These headphones are designed to provide a comfortable and immersive audio experience while keeping you aware of your surroundings. Featuring advanced sound technology and a secure clip-on design, they are perfect for various activities.

Image: Monster Open Ear AC600 Headphones and their charging case, showcasing the white, iridescent design.
What's Included
Your Monster Open Ear AC600 Headphones package includes the following items:
- Monster Open Ear AC600 Headphones x 1 pair
- Type-C Charging Cable x 1
- User Manual (this document)

Image: The contents of the product box, including the Monster Open Ear AC600 Headphones, a Type-C charging cable, and the user manual.
Setup
Charging the Headphones
Before first use, fully charge your Monster Open Ear AC600 Headphones. Connect the provided Type-C charging cable to the charging case and a power source. The charging indicator lights on the case will provide status updates. A full charge of the case provides up to 21 hours of additional playtime for the earbuds.
For quick charging, a 10-minute charge can provide approximately 1 hour of listening time.

Image: The Monster Open Ear AC600 Headphones and their charging case, illustrating the long battery life and fast charging capabilities.
Pairing with a Bluetooth Device
- Ensure the headphones are charged and inside the charging case.
- Open the charging case. The headphones will automatically enter pairing mode.
- On your device (smartphone, tablet, computer), enable Bluetooth.
- Search for "Monster Open Ear AC600" in the list of available Bluetooth devices.
- Select the headphones to connect. Once connected, you will hear an audio prompt, and the indicator light on the case will confirm successful pairing.
Wearing the Headphones
The Monster Open Ear AC600 Headphones feature an ergonomic clip-on design for a comfortable and secure fit, allowing you to remain aware of your surroundings.
- Identify the Left (L) and Right (R) earbuds.
- Gently clip each earbud onto your ear, ensuring the speaker is positioned near your ear canal without fully sealing it.
- Adjust the earbud for a comfortable and stable fit. The lightweight design (0.2 oz) and non-deforming material ensure comfort during extended wear.

Image: A diagram illustrating the ergonomic clip-on design and how to properly wear the Monster Open Ear AC600 Headphones for a stable and comfortable fit.

Image: A person wearing the Monster Open Ear AC600 Headphones, demonstrating their snug fit along the contour of the ear.
Operating the Headphones
The Monster Open Ear AC600 Headphones feature intuitive touch controls for easy management of your audio and calls.
| Function | Action | Earbud |
|---|---|---|
| Play/Pause | Double Touch | L or R |
| Voice Assistant | Touch for 2s | L or R |
| Answer/End Call | Double Touch | L or R |
| Reject Call | Touch for 2s | L or R |
| Next Track | Triple Touch | R |
| Previous Track | Triple Touch | L |
| Volume Down | Single Touch | L |
| Volume Up | Single Touch | R |

Image: A visual guide to the touch controls on the Monster Open Ear AC600 Headphones, detailing actions for playback, calls, and volume.
Sound Quality and Call Clarity
Equipped with a unique digital audio processor and powerful 13mm dynamic drivers, these headphones deliver HiFi immersive stereo audio with rich bass and clear highs. Qualcomm apt-X high-definition audio decoding ensures richer sound details.

Image: An exploded view of the Monster Open Ear AC600 Headphones' internal components, highlighting the 13mm wide frequency driver and digital audio processor for Pure Monster Sound.
For calls, Environmental Noise Cancellation (ENC) technology monitors ambient sounds and produces an opposite signal to reduce background noise, ensuring crystal clear conversations.

Image: The Monster Open Ear AC600 Headphones with an illustration of sound waves, representing the ENC noise reduction feature for clear calls.
Maintenance
Cleaning
To maintain optimal performance and hygiene, regularly clean your headphones. Use a soft, dry, lint-free cloth to wipe the earbuds and charging case. Do not use abrasive cleaners or solvents.
Water Resistance (IPX6)
The Monster Open Ear AC600 Headphones are IPX6 water resistant, meaning they are protected against high-pressure water jets from any direction. This makes them suitable for active lifestyles and various weather conditions, including rain and sweat. However, they are not designed for submersion in water.

Image: The Monster Open Ear AC600 Headphones with water droplets, visually representing their IPX6 water-resistant rating, suitable for rain and sweat.
Troubleshooting
- No Sound/Connection Issues:
- Ensure headphones are charged.
- Verify Bluetooth is enabled on your device.
- Try unpairing and re-pairing the headphones with your device.
- Ensure headphones are within the Bluetooth range of your device.
- Poor Sound Quality:
- Check the volume level on both the headphones and your connected device.
- Ensure the earbuds are positioned correctly on your ears.
- Move closer to your device to avoid interference.
- Charging Problems:
- Ensure the charging cable is securely connected to both the case and the power source.
- Try a different charging cable or power adapter.
- Clean the charging contacts on the earbuds and inside the case.
Specifications
| Feature | Detail |
|---|---|
| Model Name | Monster Open Ear AC600 E31 |
| Connectivity Technology | Wireless (Bluetooth 5.4) |
| Audio Driver Type | Dynamic Driver (13mm) |
| Control Type | Touch Control |
| Water Resistance Level | IPX6 Water Resistant |
| Earbud Playtime (Single Charge) | Approx. 7 hours (at 50%-60% volume) |
| Total Playtime (with Charging Case) | Approx. 21 hours |
| Fast Charge | 10 minutes charge for 1 hour listening |
| Material | Plastic |
| Color | White |
| Item Weight | 5.6 ounces |
| Ear Placement | Open Ear |
| Noise Control | ENC (Environmental Noise Cancellation) for calls |
Warranty and Support
For warranty information and customer support, please refer to the official Monster website or contact their customer service directly. Keep your purchase receipt for warranty claims.
For further assistance, visit the Monster Store on Amazon.





