Introduction
This manual provides comprehensive instructions for the proper use and maintenance of your Monster Open Ear AC317 Wireless Headphones. Please read this manual thoroughly before operating the device to ensure optimal performance and longevity.

Overview of the Monster Open Ear AC317 Headphones.
Setup
What's in the Box
- Monster Open Ear AC317 Headphones × 1 pair
- Charging Case × 1
- Type-C Charging Cable × 1
- User Manual × 1

Image showing the headphones, charging case, Type-C cable, and user manual included in the package.
Charging the Headphones
Before first use, fully charge the headphones and charging case. Connect the provided Type-C charging cable to the charging case and a compatible USB power source. The charging indicator lights will provide status updates.
- Charging Time: Approximately 1 hour for a full charge.
- Battery Life: Up to 7 hours on a single charge, and up to 24 hours with the charging case.

Visual representation of charging duration and total playback time with the charging case.
Wearing the Headphones
The Monster Open Ear AC317 headphones feature an ergonomic ear hook design for a secure and comfortable fit.
- Take out the earbuds from the case. They will turn on automatically.
- Place the ear hook behind your ear, from top to bottom.
- Adjust the earbud by twisting for optimal comfort and a secure fit.

Step-by-step guide on how to correctly wear the open-ear headphones.
Initial Pairing
To connect your headphones to a device for the first time:
- Pick up the earbuds from the charging case. They will automatically power on and enter pairing mode.
- On your mobile phone or Bluetooth-enabled device, navigate to the Bluetooth settings.
- Search for "Monster Open Ear AC317" in the list of available devices and select it to pair.
- You will hear a system voice prompt "Connected" once pairing is successful.

Visual guide for connecting the headphones via Bluetooth.
Operating Instructions
The Monster Open Ear AC317 headphones feature smart touch controls for various functions.

Illustration of touch control functions on the headphones.
Music Playback
- Play/Pause: Double-click (L/R earbud).
- Previous Song: Triple-click (L earbud).
- Next Song: Triple-click (R earbud).
- Volume Down: Single-click (L earbud).
- Volume Up: Single-click (R earbud).
Call Management
- Answer Call: Double-click (L/R earbud).
- Reject Call: Hold for 2 seconds (L/R earbud).
Voice Assistant
- Activate Voice Assistant: Hold for 2 seconds (L/R earbud).
Maintenance
Cleaning
Regularly clean your headphones to maintain hygiene and performance. Use a soft, dry, lint-free cloth to wipe the earbuds and charging case. Avoid using abrasive materials, solvents, or harsh chemicals.
Storage
When not in use, store the headphones in their charging case to protect them from dust and damage. Store in a cool, dry place away from extreme temperatures.
Water Resistance
Please note that these headphones are Not Water Resistant. Avoid exposure to water, rain, sweat, or high humidity to prevent damage.
Troubleshooting
| Issue | Possible Solution |
|---|---|
| Headphones do not power on | Ensure the headphones and charging case are fully charged. Place earbuds back in the case and remove them again. |
| Cannot pair with device | Ensure Bluetooth is enabled on your device. Turn off and on the headphones. Forget the device in your phone's Bluetooth settings and try pairing again. Ensure headphones are in pairing mode. |
| No sound or low volume | Check the volume level on both your device and the headphones. Ensure headphones are properly connected. Try playing different audio sources. |
| Intermittent connection | Ensure there are no obstructions between the headphones and your device. Move closer to your device. Avoid environments with strong Wi-Fi or other wireless interference. |
| Microphone not working | Ensure the headphones are selected as the audio input device on your phone. Check for any obstructions on the microphone ports. |
Specifications
- Model Name: E52 (AC317)
- Connectivity Technology: Wireless
- Wireless Communication Technology: Bluetooth 5.4
- Bluetooth Range: 10 Meters
- Ear Placement: Open Ear
- Control Type: Touch Control
- Noise Control Features: AI Noise Reduction
- Battery Life: Up to 24 Hours (with charging case)
- Charging Time: 1 Hour
- Material: Plastic
- Item Weight: 6.4 ounces
- Water Resistance Level: Not Water Resistant
- Included Components: Monster Open Ear AC317 Headphones × 1, User Manual × 1, Type-C Charging Cable × 1
Warranty Information
For detailed warranty information, please refer to the documentation included with your product packaging or visit the official Monster website. Warranty terms and conditions may vary by region and retailer.
Customer Support
If you encounter any issues or have questions not covered in this manual, please contact Monster customer support. You can typically find contact information on the official Monster website or through your retailer.
Website: www.monsterproducts.com (Please note: This is a general placeholder link. Refer to your product packaging for the most accurate support contact details.)
Safety Information
- Do not disassemble or modify the product.
- Keep away from extreme temperatures, direct sunlight, and open flames.
- Avoid dropping or subjecting the headphones to strong impacts.
- Keep out of reach of children and pets.
- Dispose of batteries and electronic components responsibly according to local regulations.
- 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.





