Introduction
Thank you for choosing the Monster Persona 3rd ANC Active Noise Canceling Headphones. This manual provides essential information for setting up, operating, and maintaining your headphones to ensure optimal performance and a clear audio experience.
Key features of your Monster Persona 3rd headphones include:
- Three Music Modes: Standard, Active Noise Cancellation (ANC), and Transparency modes for adaptable listening.
- Pure Monster Sound: High-fidelity drivers deliver rich and balanced audio.
- Extended Playtime: Up to 70 hours of battery life on a single charge.
- Comfort and Portability: Foldable design, adjustable headband, and plush earcups for comfortable wear and easy transport.
- Multipoint Connection: Advanced Bluetooth 5.4 for stable connection and simultaneous pairing with two devices.
- Versatile Connectivity: Supports both wireless Bluetooth and wired audio input via a 3.5mm cable.
Package Contents
Please verify that all items are present in your package:
- Monster Persona 3rd ANC Headphones
- USB-C Charging Cable
- 3.5mm Audio Cable (if included in your package)
- User Manual (this document)
Product Overview

This image illustrates the internal components of the Monster Persona 3rd ANC headphones, highlighting the high-fidelity drivers responsible for the Pure Monster Sound experience.

This image shows the three distinct listening modes: Balanced, ANC (Active Noise Cancellation), and Transparency, allowing users to customize their audio experience.

This image highlights the comfort features of the headphones, including simulated leather earcups, foldable design for portability, adjustable headband, and 90-degree ear cup swivel for a comfortable fit.

This image displays the headphone's internal technology, emphasizing Bluetooth 5.4 for fast wireless connection and the option for wired audio input.

This image highlights the impressive 70-hour battery life of the Monster Persona 3rd ANC headphones, ensuring extended listening sessions.

This image demonstrates the built-in microphone for hands-free calling and voice assistant activation, showing a user interacting with a voice assistant.
Controls
The Monster Persona 3rd headphones feature intuitive controls located on the earcups. While specific button layouts may vary slightly, common controls include:
- Power Button: Used for powering the headphones on/off and initiating Bluetooth pairing.
- Volume Buttons: Adjust audio volume.
- Multi-function Button: Controls music playback (play/pause, skip tracks) and call management (answer/end/reject calls).
- Mode Button: Cycles between Active Noise Cancellation (ANC), Transparency, and Standard listening modes.
- USB-C Port: For charging the headphones.
- 3.5mm Audio Jack: For wired audio connection.
Setup
Charging the Headphones
- Connect the provided USB-C charging cable to the charging port on your headphones.
- Connect the other end of the USB-C cable to a compatible USB power source (e.g., wall adapter, computer USB port).
- The LED indicator on the headphones will illuminate to show charging status. It will typically change color or turn off when fully charged. A full charge provides approximately 70 hours of playtime.
Power On/Off
- To Power On: Press and hold the Power button for approximately 3 seconds. An audible prompt will confirm the headphones are powered on.
- To Power Off: Press and hold the Power button for approximately 3 seconds. An audible prompt will confirm the headphones are powered off.
Bluetooth Pairing
- Ensure the headphones are powered off.
- Press and hold the Power button for approximately 5 seconds until the LED indicator flashes blue and red alternately. This indicates the headphones are in pairing mode.
- On your Bluetooth-enabled device (smartphone, tablet, laptop), go to the Bluetooth settings.
- Search for available devices and select 'Monster Persona 3rd' from the list.
- Once connected, the LED indicator on the headphones will turn solid blue, and an audible prompt will confirm the connection.
Multipoint Connection
Your headphones support connecting to two Bluetooth devices simultaneously:
- Pair the headphones with the first device following the Bluetooth Pairing instructions above.
- Disable Bluetooth on the first device.
- Pair the headphones with the second device.
- Re-enable Bluetooth on the first device. The headphones should now be connected to both devices, allowing you to switch audio sources seamlessly.
Wired Connection
To use the headphones with a wired connection:
- Insert one end of the 3.5mm audio cable into the audio jack on your headphones.
- Insert the other end of the 3.5mm audio cable into the audio output jack of your audio source.
- The headphones will automatically switch to wired mode. This mode can be used when the battery is depleted or with non-Bluetooth devices.
Operating Instructions
Music Playback
- Play/Pause: Press the Multi-function button once.
- Volume Up: Press the Volume Up button.
- Volume Down: Press the Volume Down button.
- Next Track: Press and hold the Volume Up button.
- Previous Track: Press and hold the Volume Down button.
Call Management
- Answer/End Call: Press the Multi-function button once.
- Reject Call: Press and hold the Multi-function button for approximately 2 seconds.
Switching Music Modes (ANC/Transparency/Standard)
Press the dedicated Mode button (or Multi-function button, depending on model) repeatedly to cycle through the following listening modes:
- Active Noise Cancellation (ANC): Reduces ambient noise for an immersive listening experience.
- Transparency Mode: Allows you to hear your surroundings while still enjoying your audio, enhancing situational awareness.
- Standard Mode: Provides a balanced sound profile without active noise cancellation or transparency features.
An audible prompt will confirm the selected mode.
Voice Assistant
Double-press the Multi-function button to activate your device's voice assistant (e.g., Siri, Google Assistant).
Maintenance
Proper maintenance ensures the longevity and performance of your headphones:
- Cleaning: Use a soft, dry, lint-free cloth to clean the earcups and headband. Do not use harsh chemicals, cleaning solvents, or abrasive materials.
- Storage: When not in use, store the headphones in a cool, dry place, away from direct sunlight and extreme temperatures. Utilizing a protective case is recommended, especially during travel.
- Avoid Moisture: These headphones are not water-resistant. Avoid exposure to water, rain, or excessive humidity.
Troubleshooting
If you encounter issues with your headphones, refer to the following common problems and solutions:
| Problem | Solution |
|---|---|
| Headphones do not power on. | Ensure the headphones are fully charged. Connect them to a power source and try again. |
| Cannot pair with a Bluetooth device. | Ensure headphones are in pairing mode (LED flashing blue/red). Check that Bluetooth is enabled on your device and 'Monster Persona 3rd' is selected. Move closer to the device. Clear previous Bluetooth connections on your device and try pairing again. |
| No sound or low volume. | Check volume levels on both the headphones and the connected device. Ensure the correct audio output is selected on your device. If using a wired connection, ensure the cable is fully inserted into both jacks. |
| Active Noise Cancellation (ANC) is not effective. | Ensure the earcups form a good seal around your ears. Check that ANC mode is activated. Note that some high-frequency sounds may not be fully canceled. |
| Poor call quality. | Ensure the microphone is not obstructed. Move to an area with better signal. Check your device's settings for microphone input. |
| Bluetooth connection drops frequently. | Ensure there are no obstructions between the headphones and your device. Reduce the distance between the devices. Avoid areas with strong Wi-Fi or other wireless interference. |
Specifications
| Feature | Specification |
|---|---|
| Model Name | Persona 3rd |
| Connectivity Technology | Wired, Wireless |
| Wireless Communication | Bluetooth |
| Bluetooth Version | 5.4 |
| Battery Life | 70 Hours |
| Noise Control Features | Active Noise Cancellation |
| Earpiece Shape | Over Ear |
| Material | Plastic with Fabric/Foam Ear Cups |
| Item Weight | 1.06 pounds |
| Manufacturer | Monster |
| Water Resistance Level | Not Water Resistant |
Safety Information
Please read and follow these safety guidelines for safe operation:
- Do not expose the headphones to extreme temperatures (hot or cold) or high humidity.
- Avoid dropping the headphones or subjecting them to strong impacts.
- Do not disassemble, modify, or attempt to repair the device yourself. This may void the warranty and pose safety risks.
- Dispose of batteries responsibly according to local regulations. Do not dispose of batteries in fire.
- Avoid using headphones at high volume levels for extended periods to prevent hearing damage.
- Do not use headphones in situations where inability to hear ambient sounds could be dangerous (e.g., driving, cycling, walking in traffic).
Warranty and Support
For detailed warranty information, technical support, or customer service inquiries regarding your Monster Persona 3rd ANC Active Noise Canceling Headphones, please refer to the documentation included with your purchase or visit the official Monster website.





