Introduction
Thank you for choosing the Monster Open AC601 Bluetooth Earbuds. These open-ear headphones are designed to provide a high-fidelity audio experience with advanced features such as Environmental Noise Cancellation (ENC) for clear calls, Bluetooth 5.4 for stable connectivity, and an IPX5 waterproof rating for durability. This manual will guide you through the setup, operation, and maintenance of your new earbuds.
What's in the Box
- Monster Open AC601 Bluetooth Earbuds
- Charging Case
- USB-C Charging Cable (not explicitly listed but standard for USB-C charging products)
- User Manual
Product Overview
Earbud Components
The Monster Open AC601 earbuds feature a 13mm PVK composite sound film and an acoustic cavity structure for enhanced sound quality.

Image: Exploded view of an earbud highlighting the 13mm speaker and acoustic cavity.
Environmental Noise Cancellation (ENC)
The earbuds are equipped with ENC technology to reduce background noise during calls, ensuring clear communication.

Image: Illustration of ENC Call Noise Reduction in action.
Bluetooth 5.4 Technology
Experience enhanced connectivity with Bluetooth 5.4, offering a stable connection and improved transmission speed for synchronized audio-visual playback.

Image: Bluetooth 5.4 technology overview.
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.
- Earbuds Playtime: Up to 8 hours on a single charge.
- Total Playtime with Charging Case: Up to 32 hours.
- Fast Charging: Approximately 1 hour for a full charge of the case.

Image: Charging and battery life information.
2. Pairing with Your Device
- Ensure the earbuds are charged.
- Open the charging case. The earbuds will automatically enter pairing mode.
- On your device (smartphone, tablet, etc.), go to Bluetooth settings and turn Bluetooth on.
- Search for available devices and select "Monster Open AC601" from the list.
- Once connected, you will hear a confirmation tone, and the earbuds will be ready for use.
Operating Instructions
Wearing the Earbuds
The Monster Open AC601 earbuds feature a comfortable clip-on design. Follow these steps for optimal fit:
- Place the small part of the earbud into your ear canal.
- Clip the larger part of the earbud onto your outer ear.
- Adjust the earbud to a comfortable and secure position.

Image: How to wear the earbuds correctly.
The ergonomic design ensures a secure fit, even during intense activities, and is designed to prevent ear pain or discomfort often associated with other earbud types.

Image: Ear clip design comfort comparison.
Touch Controls
The earbuds feature intelligent touch controls for easy management of calls, music, and voice assistant functions.

Image: Detailed touch control functions.
| Action | Control (L/R Earbud) |
|---|---|
| Answer/End Call | Double tap (x2) |
| Play/Pause | Double tap (x2) |
| Decline Phone Call | Press and hold for 2 seconds (2S) |
| Previous Song | Triple tap (x3) on Left earbud |
| Next Song | Triple tap (x3) on Right earbud |
| Increase Volume | Single tap (x1) on Right earbud |
| Reduce Volume | Single tap (x1) on Left earbud |
| Voice Assistant | Press and hold for 2 seconds (2S) |
Maintenance
Cleaning
Regularly clean your earbuds and charging case with a soft, dry, lint-free cloth. Avoid using harsh chemicals or abrasive materials.
Water Resistance
The earbuds are IPX5 waterproof, meaning they are protected against low-pressure water jets from any direction. This makes them suitable for workouts and light rain. Do not submerge the earbuds in water or expose them to high-pressure water.

Image: IPX5 Waterproof feature.
Troubleshooting
- Earbuds not pairing: Ensure both earbuds are in the charging case, then open the lid to activate pairing mode. Check your device's Bluetooth settings to ensure it's discoverable and try reconnecting.
- No sound or low volume: Check the volume levels on both your device and the earbuds. Ensure the earbuds are properly connected to your device.
- Charging issues: Verify the USB-C cable is securely connected to both the charging case and the power source. Ensure the charging contacts on the earbuds and inside the case are clean and free of debris.
- Call quality issues: Ensure the earbuds are properly positioned. Environmental Noise Cancellation (ENC) works best in moderately noisy environments. Note: Some less common phone models may experience compatibility issues affecting call quality.
- Earbuds falling out or discomfort: Re-adjust the earbuds as shown in the "How to Wear" section to ensure a secure and comfortable fit.
Specifications
| Feature | Detail |
|---|---|
| Model Name | E62 |
| Connectivity Technology | Wireless (Bluetooth 5.4) |
| Audio Driver Type | Dynamic Driver (13mm) |
| Battery Life (Earbuds) | Up to 8 hours |
| Total Battery Life (with Case) | Up to 32 hours |
| Charging Port | USB-C |
| Water Resistance Rating | IPX5 |
| Noise Control Features | Environmental Noise Cancellation (ENC) |
| Control Method | Touch |
| Ear Placement | Open Ear |
| Material | Plastic |
| Item Weight | 0.14 Kilograms (approx. 5 ounces) |
| Compatible Devices | Smartphones, Laptops, Desktops, Tablets, Smart Speakers, Televisions |
Warranty and Support
For warranty information and customer support, please refer to the warranty card included with your product or visit the official Monster website. Keep your purchase receipt for warranty claims.





