Introduction
Thank you for choosing the Monster Open Ear AC339 Earbuds. These earbuds are designed to provide a comfortable listening experience with an open-ear design, allowing you to stay aware of your surroundings while enjoying high-quality audio. This manual provides detailed instructions for setup, operation, maintenance, and troubleshooting to ensure optimal performance and longevity of your device.
What's in the Box
- Monster Open Ear AC339 Earbuds (Left and Right)
- Charging Case
- USB Charging Cable
- User Manual (this document)
Product Overview
The Monster Open Ear AC339 earbuds feature a lightweight, open-ear clip design for comfort and situational awareness. The charging case includes a digital display for battery status.
Image: Monster Open Ear AC339 Earbuds and Charging Case. The image displays the beige earbuds and their matching charging case, highlighting the compact design.
Image: Diagram illustrating key features of the Monster Open Ear AC339 Earbuds, including the open clip ear design, soft support, touch control area, Bluetooth 6.0, 12mm unit driver, and battery life indicators for single charge (8H) and with charging case (32H).
Earbud Components
- Open Clip Ear Design: Ensures a secure and comfortable fit without entering the ear canal.
- Touch Control Area: Located on the outer surface of each earbud for managing playback, calls, and voice assistant.
- Microphone: For calls and voice commands.
- Charging Contacts: For charging within the case.
Charging Case Components
- Earbud Charging Slots: Securely holds and charges the earbuds.
- Digital Battery Display: Shows the remaining battery percentage of the charging case.
- USB-C Charging Port: For charging the case.
Setup
1. Charging the Earbuds and Case
- Place the earbuds into the charging case, ensuring they are properly seated. The earbuds will begin charging automatically.
- Connect the charging case to a power source using the provided USB charging cable.
- The digital display on the charging case will show the current battery level. A full charge provides up to 40 hours of total playback time with the case.
- Allow approximately 2 hours for a full charge of the case and earbuds.
Image: The Monster Open Ear AC339 charging case open, showing the earbuds inside and the digital battery display indicating charge level. This illustrates the extended battery life feature.
2. Bluetooth Pairing
- Open the charging case. The earbuds will automatically enter pairing mode.
- On your device (smartphone, tablet, laptop), enable Bluetooth.
- Search for "Monster Open Ear AC339" in the list of available Bluetooth devices.
- Select "Monster Open Ear AC339" to connect. Once connected, you will hear an audible confirmation.
- The earbuds will automatically reconnect to the last paired device when taken out of the case, if Bluetooth is enabled on the device.
Image: A smartphone screen showing the Bluetooth settings with "Monster Open Ear AC339" listed as a connected device, alongside the earbuds and charging case.
Operating Instructions
1. How to Wear
Gently place the earbuds onto your ears, rotating them slightly to ensure the open-ear clip sits comfortably and securely around your earlobe. Adjust for the best fit and sound experience.
Image: A diagram illustrating the correct method to wear the Monster Open Ear AC339 earbuds, showing how to position the clip around the ear for a secure and comfortable fit.
2. Touch Controls
The AC339 earbuds feature multi-function touch controls on both earbuds. Refer to the diagram below for specific functions:
Image: A visual guide detailing the touch control functions for the Monster Open Ear AC339 earbuds. It shows controls for answering/rejecting calls, play/pause, voice assistant, previous song, next song, volume up, and volume down.
| Action | Function (Left/Right Earbud) |
|---|---|
| Click x 2 | Answer Call / Play/Pause Music |
| Hold x 2s | Reject Call / Activate Voice Assistant |
| Click x 3 (Left) | Previous Song |
| Click x 3 (Right) | Next Song |
| Click x 1 (Left) | Volume Down |
| Click x 1 (Right) | Volume Up |
Maintenance
Cleaning
- 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 for proper charging.
Water Resistance (IPX6)
The AC339 earbuds are IPX6 water-resistant, meaning they can withstand strong jets of water from any direction. This makes them suitable for workouts and light rain. However, they are not designed for submersion in water. Do not swim or shower with the earbuds.
Image: The Monster Open Ear AC339 earbuds shown with water droplets, illustrating their IPX6 water resistance. This highlights their suitability for exercise and outdoor use in light rain.
Storage
- Store the earbuds in their charging case when not in use to protect them and keep them charged.
- Avoid extreme temperatures and direct sunlight.
Troubleshooting
| Problem | Solution |
|---|---|
| Earbuds not pairing |
|
| Only one earbud working |
|
| No sound or low volume |
|
| Charging case not charging |
|
Specifications
| Feature | Detail |
|---|---|
| Model Name | AC339 (E98WH) |
| Connectivity | Bluetooth 6.0 |
| Ear Placement | Open Ear |
| Control Method | Touch |
| Water Resistance | IPX6 |
| Battery Life (Total with Case) | Up to 40 Hours |
| Earbud Weight | 5.2g (each) |
| Audio Driver Type | Dynamic Driver |
| Material | Silicone |
| Compatible Devices | Smartphones, Laptops, Tablets, Smart Speakers, Car Audio Systems |
Warranty and Support
Monster products are designed for reliability and performance. For any inquiries, technical support, or warranty claims, please contact Monster customer service. Refer to your purchase documentation or the official Monster website for specific warranty terms and contact information.
Dedicated After-Sales Support: Our professional customer service team is available to assist with any questions or feedback regarding your product. We are committed to ensuring a seamless experience and finding solutions that meet your needs.
