Introduction
Thank you for choosing the Monster Wireless Earbuds Open AC601. These open-ear earbuds are designed to provide a comfortable listening experience with high-fidelity audio, advanced Bluetooth 5.4 connectivity, and environmental noise cancellation for clear calls. This manual will guide you through the setup, operation, and maintenance of your new earbuds to ensure optimal performance and longevity.

Image: The Monster Wireless Earbuds Open AC601, showing both earbuds and their sleek purple charging case.
Safety Information
Please read all safety warnings and instructions before using this product to prevent injury or damage.
- Do not expose the earbuds or charging case to extreme temperatures, humidity, or corrosive materials.
- Avoid dropping, impacting, or disassembling the device.
- Keep out of reach of children and pets.
- Do not use the earbuds at excessively high volumes for prolonged periods to prevent hearing damage.
- Clean the earbuds with a soft, dry cloth only. Do not use harsh chemicals or abrasive materials.
Package Contents
Verify that all items are present in your package:
- Monster Wireless Earbuds Open AC601 (Left and Right)
- Charging Case
- USB Charging Cable (Type-C)
- User Manual
Product Overview
The Monster Open AC601 earbuds feature a unique clip-on design for comfort and stability. Each earbud is equipped with a 13mm dynamic driver for rich audio and touch controls for easy management.

Image: An exploded view diagram illustrating the internal components of the earbud, highlighting the 13mm speaker dynamic audio driver and acoustic cavity structure for enhanced sound quality.
Setup
1. Charging the Earbuds and Case
Before first use, fully charge the earbuds and the charging case.
- Place the earbuds into the charging case. Ensure they are correctly seated.
- Connect the charging case to a USB power source using the provided USB-C cable.
- The indicator lights on the case will show the charging status. Once fully charged, the lights will indicate a full charge.
Image: An illustration highlighting the impressive 32-hour total playtime, with details on earbud and charging case battery life, and fast charging capability.
2. Pairing with a Device
The earbuds utilize Bluetooth 5.4 for a stable and efficient connection.
- Open the charging case. The earbuds will automatically power on and enter pairing mode.
- On your device (smartphone, tablet, laptop), enable Bluetooth.
- Search for "Monster AC601" in the list of available Bluetooth devices and select it to connect.
- Once connected, you will hear an audible confirmation.
Image: A visual representation of the upgraded Bluetooth 5.4 technology, emphasizing low latency, stable connection, and synchronized sound with image.
3. Wearing the Earbuds
The AC601 features an ergonomic ear clip design for a secure and comfortable fit.
- Identify the left (L) and right (R) earbuds.
- Place the small part of the earbud into your ear canal.
- Clip the larger part of the earbud gently behind your ear.
- Adjust the earbud until it feels comfortable and secure.
Image: A step-by-step diagram demonstrating the correct way to wear the Monster Open AC601 earbuds, showing how to position the small part in the ear and clip the larger part behind the ear.
Image: A comparison graphic highlighting the benefits of the ear clip design of the Monster Open AC601 earbuds against traditional earbuds that may cause ear pain, discomfort, or fall off easily.
Operating Instructions
Touch Controls
The earbuds feature intuitive touch controls on the outer surface of each earbud.
Image: A detailed diagram illustrating the touch control functions for the Monster earbuds, including actions for answering/ending calls, play/pause, declining calls, previous/next song, volume adjustment, and voice assistant activation.
- Answer/End Call: Tap L/R earbud x2
- Play/Pause: Tap L/R earbud x2
- Decline Phone Call: Tap L/R earbud for 2 seconds
- Previous Song: Tap L earbud x3
- Next Song: Tap R earbud x3
- Increase Volume: Tap R earbud x1
- Reduce Volume: Tap L earbud x1
- Voice Assistant: Tap L/R earbud for 2 seconds
Environmental Noise Cancellation (ENC)
The earbuds feature ENC technology for clearer calls by reducing background noise.
Image: An illustration demonstrating the Environmental Noise Cancellation (ENC) feature, showing how it filters out background noise for clear call quality.
Maintenance
Cleaning
Regular cleaning helps maintain sound quality and hygiene.
- Use a soft, dry, lint-free cloth to wipe the earbuds and charging case.
- Do not use liquids, sprays, or cleaning agents.
- Gently remove any earwax or debris from the speaker mesh using a small, soft brush.
Storage
When not in use, store the earbuds in their charging case to protect them and keep them charged.
Water Resistance (IPX5)
The earbuds are IPX5 water-resistant, meaning they can withstand sweat and light splashes of water. They are not designed for submersion in water.
Image: An illustration depicting the IPX5 waterproof rating of the earbuds, showing them resistant to water splashes, indicating suitability for workouts and light rain.
Troubleshooting
If you encounter issues, try the following solutions:
| Problem | Solution |
|---|---|
| Earbuds not pairing | Ensure earbuds are charged. Turn off and on Bluetooth on your device. Forget the device in Bluetooth settings and re-pair. |
| No sound from one earbud | Place both earbuds back in the case, close it, then open it again. Ensure both earbuds are charged. |
| Low volume | Increase volume on both the earbuds (single tap R) and your connected device. |
| Earbuds not charging | Ensure the charging cable is securely connected. Check the charging port for debris. Try a different USB power source. |
| Poor call quality | Ensure earbuds are properly worn. Move closer to your device. Avoid noisy environments if possible. |
Specifications
| Feature | Detail |
|---|---|
| Model Name | E62 (AC601) |
| Connectivity Technology | Wireless (Bluetooth) |
| Bluetooth Version | 5.4 |
| Audio Driver Size | 13 Millimeters |
| Frequency Range | 20 Hz - 20,000 Hz |
| Battery Life (Earbuds) | Up to 8 hours (single charge) |
| Total Playtime (with Case) | Up to 32 hours |
| Water Resistance Level | IPX5 (Water Resistant) |
| Control Method | Touch |
| Item Weight | 5 ounces |
| Color | Purple |
| Compatible Devices | Smartphones, Laptops, Tablets, Smart Speakers |
Warranty and Support
Monster products are designed and manufactured to the highest quality standards. For warranty information and customer support, please refer to the warranty card included in your package or visit the official Monster website. Keep your proof of purchase for warranty claims.
For further assistance, please contact Monster customer service through their official channels.