1. Introduction
Thank you for choosing the Monster Open Ear AC339 Earbuds. These earbuds are designed to provide a comfortable listening experience with high-fidelity audio, intuitive touch controls, and robust water resistance. This manual will guide you through the setup, operation, and maintenance of your new earbuds.
Product Overview
The Monster Open Ear AC339 Earbuds feature an open-ear clip design for comfort and situational awareness. They offer clear, immersive sound and are equipped with Bluetooth 5.4 for stable connectivity. With IPX6 water resistance, they are suitable for various activities, including workouts and outdoor use.
Each earbud weighs approximately 5.2 grams, ensuring a lightweight and comfortable fit.
The earbuds are engineered for excellent sound quality, delivering rich bass, clear vocals, and pristine highs.
The new open-ear design ensures a secure and comfortable fit, preventing them from easily falling off during use.
2. Setup
What's in the Box
- Monster Open Ear AC339 Earbuds
- Charging Case
- USB-C Charging Cable
- User Manual
Charging the Earbuds and Case
Before first use, fully charge the earbuds and charging case. Place the earbuds into the charging case, then connect the USB-C charging cable to the case and a power source. The digital display on the case will indicate the battery level. A full charge provides up to 40 hours of total playback time with the charging case, and the earbuds support two-hour fast charging.
The charging case provides extended battery life, offering up to 40 hours of total listening time.
Wearing the Earbuds
To ensure optimal sound and comfort, correctly position the earbuds:
- Identify the left (L) and right (R) earbuds.
- Gently place the earbud onto your ear, ensuring the open-ear clip design sits securely around your earlobe.
- Rotate the earbud slightly to achieve a comfortable and stable fit. The sound outlet should be positioned near your ear canal without entering it directly.
Properly wear the earbuds by placing them on your ears and rotating for a secure and comfortable fit.
Bluetooth Pairing
To connect your earbuds to a device:
- Ensure the earbuds are charged and in the charging case.
- Open the charging case. The earbuds will automatically enter pairing mode, indicated by a flashing light (if applicable, refer to LED indicator section for details).
- On your device (smartphone, tablet, etc.), go to Bluetooth settings and turn Bluetooth on.
- Search for available devices and select "Monster Open Ear AC339" from the list.
- Once connected, the earbuds will indicate successful pairing (e.g., a voice prompt or solid light).
Connect your earbuds by selecting "Monster Open Ear AC339" in your device's Bluetooth settings.
3. Operating Instructions
Touch Controls
The Monster Open Ear AC339 Earbuds feature sensitive binaural touch controls. The following actions can be performed by tapping or holding the touch area on either earbud:
| Action | Function |
|---|---|
| Click x 2 (Left or Right) | Answer/End Call, Play/Pause Music |
| Hold x 2s (Left or Right) | Reject Call, Activate Voice Assistant |
| Click x 3 (Left) | Previous Song |
| Click x 1 (Left) | Volume Down |
| Click x 3 (Right) | Next Song |
| Click x 1 (Right) | Volume Up |
Refer to this diagram for a visual guide to the touch control functions.
Audio Sharing
The earbuds support audio sharing, allowing two users to enjoy the same audio content simultaneously from a single device. Ensure both earbuds are connected to the same device and properly worn.
Enjoy shared audio experiences with another person using the audio sharing feature.
4. Maintenance
Cleaning
To maintain optimal performance and hygiene:
- Regularly wipe the earbuds and charging case with a soft, dry, lint-free cloth.
- Do not use abrasive cleaners, solvents, or aerosol sprays.
- Ensure charging contacts are clean and dry before placing earbuds in the case.
Water Resistance
The Monster Open Ear AC339 Earbuds are IPX6 water-resistant. This means they can withstand strong jets of water from any direction, making them suitable for workouts and light rain. However, they are not designed for submersion in water. Do not swim or shower with the earbuds, and ensure they are dry before placing them back in the charging case.
The IPX6 rating protects your earbuds from sweat and light rain, but they should not be submerged.
Storage
When not in use, store the earbuds in their charging case to protect them from dust, damage, and to keep them charged.
5. Troubleshooting
If you encounter any issues with your Monster Open Ear AC339 Earbuds, please refer to the following common solutions:
| Problem | Possible Solution |
|---|---|
| Earbuds not pairing |
|
| No sound from one or both earbuds |
|
| Charging issues |
|
| Touch controls not responding |
|
6. Specifications
| Feature | Detail |
|---|---|
| Brand | Monster |
| Model Name | AC339 (Wireless Headset) |
| Model Number | E98 |
| Connectivity Technology | Bluetooth 5.4 |
| Ear Placement | Open Ear |
| Form Factor | Open Ear |
| Water Resistance | IPX6 |
| Battery Life | Up to 40 hours (with charging case) |
| Earbud Weight | 5.2g (each) |
7. Warranty and Support
Warranty Information
The Monster Open Ear AC339 Earbuds come with a 1-year manufacturer's warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use. Please retain your proof of purchase for warranty claims.
Customer Support
For any inquiries, technical assistance, or warranty claims, please contact Monster customer service. You can typically find contact information on the official Monster website or through your retailer's support channels. Our professional customer service team is ready to assist you.
