Introduction
Thank you for choosing the Monster Open Ear AC317 Open Ear Headphones. This manual provides essential information for the proper setup, operation, and maintenance of your new headphones. Please read this manual thoroughly before using the product to ensure optimal performance and longevity.
Product Overview
The Monster Open Ear AC317 headphones are designed for comfort and situational awareness, featuring an open-ear design, stereo bass, ENC noise-canceling for calls, and water resistance, making them suitable for outdoor activities.

Image: The Monster Open Ear AC317 headphones, one earbud shown outside the charging case, and the other earbud resting inside the open charging case. Both are black with the 'M Monster' logo visible.
Package Contents
Ensure all items are present in the package:
- Monster Open Ear AC317 Headphones (Left and Right)
- Charging Case
- USB Charging Cable
- User Manual (this document)
Setup
1. Charging the Headphones and Case
Before first use, fully charge the headphones and the charging case.
- Place both headphones into the charging case, ensuring they are properly seated.
- Connect the USB charging cable to the charging port on the case and the other end to a USB power source (e.g., computer USB port, wall adapter).
- The charging indicator lights on the case will show the charging status. A full charge typically takes approximately 2 hours.
- Once fully charged, disconnect the charging cable.
2. Pairing with a Bluetooth Device
The headphones will automatically enter pairing mode when taken out of the charging case for the first time.
- Ensure the headphones are charged.
- Open the charging case and remove both headphones. They will automatically power on and enter pairing mode (indicated by flashing LED lights).
- On your Bluetooth-enabled device (smartphone, tablet, computer), go to the Bluetooth settings.
- Search for available devices and select "Monster AC317" from the list.
- Once connected, the LED indicators on the headphones will stop flashing and remain solid or turn off, depending on the model. A voice prompt may also confirm the connection.
- If pairing fails, place the headphones back into the case, close the lid, wait a few seconds, and then repeat the steps.
Operating Instructions
Power On/Off
- Power On: Open the charging case and remove the headphones. They will power on automatically.
- Power Off: Place the headphones back into the charging case and close the lid. They will power off automatically.
Wearing the Headphones
Gently place the ear hooks over your ears, positioning the speaker part comfortably near your ear canal. Adjust for a secure and comfortable fit.
Touch Controls
The Monster AC317 headphones feature touch-sensitive controls on each earbud. The specific functions may vary slightly, but common controls include:
- Play/Pause: Single tap on either earbud.
- Next Track: Double tap on the right earbud.
- Previous Track: Double tap on the left earbud.
- Answer/End Call: Single tap on either earbud during an incoming call.
- Reject Call: Press and hold either earbud for 2 seconds during an incoming call.
- Activate Voice Assistant: Triple tap on either earbud (e.g., Siri, Google Assistant).
- Volume Up: Press and hold the right earbud.
- Volume Down: Press and hold the left earbud.
Note: Refer to the quick start guide included in your package for precise touch control mapping if different from above.
Maintenance and Care
Proper maintenance ensures the longevity and optimal performance of your headphones.
- Cleaning: Use a soft, dry, lint-free cloth to clean the headphones and charging case. Do not use abrasive cleaners, alcohol, or chemical solvents.
- Water Resistance: The headphones are water-resistant, suitable for workouts and light rain. They are not designed for submersion in water. Do not expose them to saltwater or other liquids. Ensure they are dry before placing them back in the charging case.
- Storage: When not in use, store the headphones in their charging case to protect them and keep them charged. Store in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: To preserve battery life, avoid fully discharging the headphones frequently. Charge them regularly, even if not used for extended periods.
Troubleshooting
| Problem | Possible Solution |
|---|---|
| Headphones not powering on | Ensure headphones are charged. Place them in the charging case, close the lid, and then reopen to activate. |
| Cannot pair with device |
|
| No sound or low volume |
|
| One earbud not working |
|
Specifications
| Feature | Detail |
|---|---|
| Model Name | Monster Open Ear AC317 |
| Brand | Monster |
| Connectivity Technology | Wireless (Bluetooth) |
| Ear Placement | Open Ear |
| Form Factor | Over Ear |
| Charging Time | Approximately 2 Hours |
| Playtime | Up to 24 hours (with charging case) |
| Water Resistance | Yes (Water-Resistant) |
| Noise Canceling | ENC Noise-Canceling (for calls) |
| Item Weight | 4.9 ounces |
Warranty and Support
Monster products are designed and manufactured to the highest quality standards. For information regarding warranty coverage, technical support, or service inquiries, please refer to the warranty card included with your purchase or visit the official Monster website.
Online Support: www.monsterproducts.com/support
Customer Service: Refer to your regional Monster contact information for phone or email support.
Safety Information
- Do not disassemble, repair, or modify the product.
- Keep away from extreme temperatures, humidity, and corrosive substances.
- Avoid dropping or subjecting the headphones to strong impacts.
- Do not use the headphones at excessively high volumes for prolonged periods to prevent hearing damage.
- Be aware of your surroundings when using open-ear headphones, especially in traffic or hazardous environments.





