Introduction
This manual provides instructions for the Monster Persona 4th ANC Active Noise Canceling Headphones. Please read this manual thoroughly before using the product to ensure proper operation and to understand its features.

Image: Monster Persona 4th ANC Headphones in white, showcasing the overall design.
Safety Information
Observe the following safety guidelines to prevent damage to the device or injury to yourself:
- Do not expose the headphones to extreme temperatures or humidity.
- Avoid dropping or subjecting the headphones to strong impacts.
- Do not disassemble or attempt to repair the headphones yourself.
- Clean the headphones with a soft, dry cloth. Do not use harsh chemicals.
- Prolonged listening at high volume levels may cause hearing damage.
Package Contents
Verify that all items are present in the package:
- 1x Monster Persona 4th ANC Headphones
- 1x Type-C Charging Cable
- 1x Aux Cable
- 1x User Manual

Image: Contents of the product box, including the headphones, charging cable, aux cable, and user manual.
Product Overview and Controls
Familiarize yourself with the headphone components and control buttons.

Image: Diagram illustrating the location and function of the control buttons on the headphones.
- Volume +: Press once to increase volume. Long press for 2 seconds for next song.
- Volume -: Press once to decrease volume. Long press for 2 seconds for previous song.
- Power Button:
- ON: Long press for 3 seconds.
- OFF: Long press for 5 seconds.
- Play/Pause: Press once.
- Answer/Hang up call: Press once.
- Reject call: Long press for 2 seconds.
- Voice assistant: Long press for 2 seconds.
- ANC Switching Modes: Press once to cycle through modes (Active Noise Canceling, Transparency, Standard).
Setup
Charging the Headphones
Before first use, fully charge the headphones.
- Connect the Type-C charging cable to the charging port on the headphones.
- Connect the other end of the cable to a USB power source (e.g., wall adapter, computer USB port).
- The indicator light will show charging status. A full charge takes approximately 2 hours.
A 10-minute charge provides approximately 5 hours of playback.

Image: Visual representation of the headphone's battery life and fast charging capability.
Power On/Off
- To Power On: Long press the Power button for 3 seconds.
- To Power Off: Long press the Power button for 5 seconds.
Bluetooth Pairing
To connect your headphones to a device via Bluetooth:
- Ensure the headphones are powered off.
- Long press the Power button for 3 seconds to power on and enter pairing mode (indicator light will flash).
- On your device (smartphone, tablet, computer), enable Bluetooth and search for available devices.
- Select "Monster Persona 4th ANC" from the list of devices.
- Once connected, the indicator light will stop flashing.

Image: Close-up of the internal Bluetooth 6.0 chip, indicating advanced wireless connectivity.
Multi-Point Connection
The headphones support connecting to two Bluetooth devices simultaneously.
- Connect the headphones to the first device as described in the Bluetooth Pairing section.
- Disconnect Bluetooth on the first device temporarily.
- Connect the headphones to the second device.
- Reconnect Bluetooth on the first device. The headphones should now be connected to both devices.

Image: Headphones connected simultaneously to a smartphone and a laptop, demonstrating multi-point connection.
Wired Connection
To use the headphones with a wired connection:
- Connect the included Aux Cable to the 3.5mm audio jack on the headphones.
- Connect the other end of the Aux Cable to your audio source's 3.5mm output.
Note: The wired connection on mobile devices only supports Type-C port input and output if using a Type-C to 3.5mm adapter (not included).
Operating
Music Playback and Volume
- Play/Pause: Press the Power button once.
- Next Song: Long press Volume + for 2 seconds.
- Previous Song: Long press Volume - for 2 seconds.
- Increase Volume: Press Volume + once.
- Decrease Volume: Press Volume - once.
Call Management
- Answer/Hang up: Press the Power button once.
- Reject Call: Long press the Power button for 2 seconds.
Voice Assistant
- Activate Voice Assistant: Long press the Power button for 2 seconds.
Sound Modes (ANC, Transparency, Standard)
The headphones offer three listening modes:
- Active Noise Canceling (ANC) Mode: Reduces ambient noise.
- Transparency Mode: Allows you to hear your surroundings while listening to audio.
- Standard Mode: Balanced sound for everyday listening without noise cancellation or transparency.
To switch between modes, press the ANC Switching Modes button once.

Image: Illustration of the three available music modes: Balanced, ANC, and Transparency, with a user demonstrating the headphones.
Wearing the Headphones
Adjust the headband and earcups for a comfortable and secure fit. The earcups rotate for flexible adjustments.

Image: Close-up of an earcup, highlighting the breathable cushion design for comfort.

Image: Diagrams showing the dimensions of the headphones for both wireless and wired configurations.
Maintenance
- Cleaning: Use a soft, dry, lint-free cloth to clean the headphones. Do not use liquid cleaners or aerosols.
- Storage: When not in use, store the headphones in a cool, dry place, away from direct sunlight and extreme temperatures. The foldable design allows for compact storage.
- Battery Care: To preserve battery life, charge the headphones regularly, even if not used frequently. Avoid fully discharging the battery for extended periods.
Troubleshooting
| Problem | Solution |
|---|---|
| Headphones do not power on. | Ensure the headphones are charged. Connect to a power source using the Type-C cable. |
| Cannot pair via Bluetooth. | Ensure headphones are in pairing mode (flashing indicator light). Turn off and on Bluetooth on your device. Forget previous pairings and try again. Ensure headphones are within range. |
| No sound or low volume. | Check headphone and device volume levels. Ensure headphones are properly connected (Bluetooth or wired). Try restarting both devices. |
| Active Noise Canceling (ANC) is not effective. | Ensure ANC mode is activated. Check that the earcups form a good seal around your ears. ANC is most effective against low-frequency sounds. |
| Microphone not working during calls. | Ensure the headphones are connected via Bluetooth. Check your device's audio input settings to confirm the headphones are selected as the microphone. |
Specifications
| Feature | Detail |
|---|---|
| Model Name | Monster Persona 4th ANC |
| Connectivity Technology | Wired, Wireless (Bluetooth 6.0) |
| Headphones Jack | 3.5 mm Jack |
| Wireless Communication Technology | Bluetooth |
| Material | Leather, Plastic |
| Charging Time | 2 Hours |
| Battery Average Life | 70 Hours (ANC off), 50 Hours (ANC on) |
| Control Type | Button Control |
| Item Weight | 0.2 Kilograms |
| Water Resistance Level | Water Resistant |
| Maximum Operating Distance | 33 Feet |
| Noise Control | Active Noise Cancellation |
| Form Factor | Over Ear |
| Product Dimensions | 17.4 x 8 x 19.5 cm |
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.
If you encounter any issues not covered in this manual, please contact customer support for assistance.





