Marshall Monitor III A.N.C. Over-Ear Bluetooth Headphones

1. Getting Started

This section guides you through the initial setup and basic functions of your Marshall Monitor III A.N.C. headphones.

1.1. Initial Setup and Pairing

To begin using your headphones, follow these steps to pair them with your device:

1. Power On and Pairing Mode: Push and hold the multi-directional control knob until the LED indicator on the headphones begins to pulse slowly in blue. This indicates the headphones are in Bluetooth pairing mode.
2. Connect to Device: On your audio source device (e.g., smartphone, tablet, computer), navigate to the Bluetooth settings. Select "Monitor III A.N.C." from the list of available devices to establish the connection.
3. Marshall Bluetooth App: For enhanced control and customization, download the Marshall Bluetooth app from your device's app store. Follow the in-app instructions to complete the setup and unlock additional features.

The multi-directional control knob is used for power, pairing, and media control. The LED indicator shows the headphone status.

1.2. Charging the Headphones

Ensure your headphones are fully charged for optimal performance. The Monitor III A.N.C. offers up to 70 hours of wireless playtime with Active Noise Cancellation (ANC) and up to 100 hours without ANC.

• Charging Connection: Connect the supplied USB-C charging cable to the USB-C port on the headphones and plug the other end into a compatible USB power source.
• Charging Indicator: The LED indicator will show a steady green light when the headphones are fully charged.

The USB-C port is located on the bottom of the left earcup for convenient charging.

2. Operating Your Headphones

Understand the various features and controls of your Marshall Monitor III A.N.C. headphones.

2.1. Active Noise Cancellation (ANC) & Transparency Mode

The Monitor III A.N.C. features advanced active noise cancelling technology to minimize ambient sounds and a Transparency mode to let the outside world in.

• ANC Functionality: The headphones continuously measure ambient noise to effectively block out unwanted sounds, providing an immersive listening experience.
• Switching Modes: Use the dedicated ANC button on the left earcup to toggle between Active Noise Cancellation, Transparency mode, and off.

Enjoy extended listening sessions with powerful noise cancellation.

2.2. Marshall Signature Sound

Experience the iconic Marshall sound, engineered for sensational audio quality.

• Dynamic Loudness: The headphones incorporate Dynamic Loudness technology, which intelligently adjusts the treble, mids, and bass to maintain optimal sound balance at any volume level.

The Marshall Signature Sound delivers a perfectly balanced audio profile.

2.3. Soundstage Spatial Audio

Immerse yourself in a wider and more expansive audio experience with Soundstage Spatial Audio.

• Enhanced Presence: This feature expands the sound beyond the confines of your head, creating a broader and more immersive soundstage for your music.

Soundstage Spatial Audio creates a more expansive and engaging listening environment.

2.4. Customizable M-Button

The M-Button provides quick access to a custom action, enhancing your user experience.

• Custom Action: Push the M-button to activate a pre-selected custom action. This action can be configured within the Marshall Bluetooth app.
• Default Action: By default, the M-button is set to activate Spotify Tap, allowing for instant music playback.

The M-button is located on the right earcup, providing quick access to your preferred function.

2.5. Multi-Directional Control Knob

The gold multi-directional control knob offers intuitive control over your audio and calls.

• Power On/Off: Press and hold to power the headphones on or off.
• Play/Pause: Single press to play or pause audio.
• Skip Track: Push right or left to skip forward or backward.
• Volume Control: Push up or down to adjust the volume.
• Answer/End Call: Single press to answer or end a call.
• Reject Call: Press and hold to reject an incoming call.

The multi-directional control knob provides comprehensive control from a single point.

2.6. Foldable Design

The rugged and foldable design ensures durability and portability.

• Portability: The headphones can be folded compactly, making them easy to store and transport in their premium hard case.
• Durability: Built to withstand daily wear and tear, ensuring longevity.

The included hard case protects your headphones when folded for travel.

3. Maintenance and Care

Proper care will extend the life and maintain the performance of your headphones.

• Cleaning: Use a soft, dry cloth to clean the earcups and headband. Avoid using harsh chemicals or abrasive materials.
• Storage: When not in use, store the headphones in their protective hard case to prevent damage from dust, scratches, and impacts.
• Moisture: Keep the headphones away from excessive moisture and extreme temperatures. Do not submerge them in water.
• Cables: Handle the USB-C charging cable and 3.5mm audio cord with care to prevent fraying or damage.

4. Troubleshooting

If you encounter issues with your Marshall Monitor III A.N.C. headphones, refer to these common solutions.

4.1. Connectivity Issues

• Headphones not pairing: Ensure the headphones are in pairing mode (slow blue pulse of LED). Turn off and on your device's Bluetooth. Try forgetting the device on your phone and re-pairing.
• Intermittent connection: Ensure you are within the Bluetooth range (10 meters). Avoid obstacles between the headphones and your device. Reduce interference from other wireless devices.

4.2. Audio Issues

• No sound: Check the volume levels on both the headphones and your connected device. Ensure the headphones are properly paired. If using the 3.5mm audio cord, ensure it is fully inserted into both the headphones and the audio source.
• Poor sound quality: Ensure the audio source is of good quality. Try disconnecting and reconnecting the Bluetooth connection. If using ANC, ensure it is enabled correctly.

4.3. Charging Issues

• Headphones not charging: Ensure the USB-C cable is securely connected to both the headphones and the power source. Try a different USB-C cable or power adapter. Verify the power source is active.
• LED not indicating charge: If the LED does not light up when charging, ensure the connection is secure. If the issue persists, contact customer support.

4.4. ANC Not Functioning Properly

• Weak noise cancellation: Ensure the earcups are properly sealed around your ears. Adjust the fit of the headphones. Ensure the ANC feature is activated via the ANC button.

5. Specifications

Detailed technical specifications for the Marshall Monitor III A.N.C. Over-Ear Bluetooth Headphones.

6. Warranty and Support

For detailed warranty information and customer support, please refer to the official Marshall website or the 'Legal and Safety Information' document included with your headphones.

• User Manual: A physical user manual is included in the product packaging for quick reference.
• Online Resources: Visit the official Marshall website for the latest user guides, FAQs, and support contact information.

The product package includes the headphones, charging cable, audio cable, user manual, and legal information.