Marshall 1005228
Marshall Monitor II Active Noise Canceling Over-Ear Bluetooth Headphone User Manual
Model: 1005228
Introduction
This manual provides detailed instructions for the setup, operation, maintenance, and troubleshooting of your Marshall Monitor II Active Noise Canceling Over-Ear Bluetooth Headphones. Please read this manual thoroughly before using your headphones to ensure proper functionality and to maximize your listening experience.
Package Contents
Upon opening your Marshall Monitor II headphones package, please verify that all the following items are included:
- Marshall Monitor II Active Noise Canceling Over-Ear Bluetooth Headphone
- Removable 3.5mm Audio Cable
- USB-C Charging Cable
- Canvas Carrying Bag
- User Manual with Legal and Safety Information (this document)

Image: All included components of the Marshall Monitor II headphones, neatly laid out. This includes the headphones, a 3.5mm audio cable, a USB-C charging cable, and a black canvas carrying bag with the Marshall logo.
Setup
1. Charging the Headphones
Before initial use, fully charge your Marshall Monitor II headphones. Connect the supplied USB-C charging cable to the USB-C port on the headphones and the other end to a USB power source (e.g., computer USB port, wall adapter). The LED indicator will show charging status.
- A full charge takes approximately 2 hours.
- A 15-minute quick charge provides several hours of playtime.
2. Powering On/Off
To power on, press and hold the control knob for approximately 5 seconds until the LED indicator lights up. To power off, press and hold the control knob for approximately 2 seconds.
3. Bluetooth Pairing
- Ensure the headphones are powered off.
- Press and hold the control knob for 5 seconds until the LED indicator flashes blue, indicating pairing mode.
- On your device (smartphone, tablet, computer), enable Bluetooth and select "Monitor II A.N.C." from the list of available devices.
- Once connected, the LED indicator will turn solid blue.
The headphones support multipoint connectivity, allowing connection to two devices simultaneously.
Operating Instructions
Control Knob Functions
The multi-directional control knob on the left earcup provides comprehensive control over your music and calls:
- Press once: Play/Pause music, Answer/End call.
- Press twice: Skip forward.
- Press three times: Skip backward.
- Push up/down: Adjust volume.
- Push left/right: Navigate tracks (can be customized via app).
- Long press: Power on/off, Decline call.

Image: The Marshall Monitor II headphones, highlighting the multi-directional control knob on the right earcup (from user's perspective, it's on the left earcup when worn).
Active Noise Canceling (ANC)
The Monitor II A.N.C. features active noise canceling technology to block out ambient noise. The ANC button is located on the left earcup.
- Press once: Toggle ANC On/Off.
- Long press: Activate Monitoring Mode (allows ambient sound to pass through).
The effectiveness of ANC and ambient sound can be customized from 0-100% using the dedicated Marshall Bluetooth app.
Marshall Bluetooth App
Download the Marshall Bluetooth app from your device's app store for additional features and customization:
- Adjust ANC and Monitoring Mode levels.
- Customize equalizer settings (choose from presets or create your own).
- Assign functions to the M-button (e.g., equalizer preset cycling, Google Assistant, native voice assistant).
- View battery status.
- Receive firmware updates.
Wired Connection
For a wired listening experience, connect the supplied 3.5mm audio cable to the headphone's 3.5mm jack and your audio source. The headphones can be used in wired mode even when powered off, though ANC functionality requires power.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the headphones. Do not use abrasive cleaners or solvents.
- Storage: When not in use, store the headphones in the provided canvas carrying bag to protect them from dust and scratches. The collapsible design allows for compact storage.
- Battery Care: To prolong battery life, avoid fully discharging the headphones frequently. Charge them regularly, even if not in constant use.
- Environmental Conditions: Avoid exposing the headphones to extreme temperatures, humidity, or direct sunlight.

Image: The Marshall Monitor II headphones shown in their folded, compact state, ready for storage in the carrying bag.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Headphones do not power on. | Low battery. | Charge the headphones using the supplied USB-C cable. |
| Cannot pair via Bluetooth. | Headphones not in pairing mode; device Bluetooth off; interference. | Ensure headphones are in pairing mode (flashing blue LED). Turn device Bluetooth off and on. Move closer to the device. Forget previous pairings on your device. |
| No sound or poor sound quality. | Volume too low; incorrect audio source; loose cable connection (wired mode); out of Bluetooth range. | Increase volume on headphones and device. Reconnect 3.5mm cable firmly. Move closer to the Bluetooth device. |
| Active Noise Canceling not working. | ANC is off; headphones powered off (in wired mode). | Press the ANC button to toggle it on. Ensure headphones are powered on for ANC functionality, even in wired mode. |
If the problem persists, refer to the official Marshall support resources or contact customer service.
Specifications
| Feature | Detail |
|---|---|
| Model Name | Marshall Monitor II Active Noise Canceling Over-Ear Bluetooth Headphone |
| Model Number | 1005228 |
| Connectivity Technology | Bluetooth 5.0 |
| Noise Control | Active Noise Cancellation |
| Battery Life | Up to 30 hours (with ANC), Up to 45 hours (without ANC) |
| Charging Time | Approx. 2 hours for full charge (15 minutes for quick charge) |
| Headphones Jack | 3.5 mm Jack |
| Ear Placement | Over Ear |
| Form Factor | Over Ear |
| Color | Black |
| Material | Canvas (for carrying bag) |
| Item Weight | 11.3 Ounces (approx. 320 grams) |
| Product Dimensions | 2.9 x 5.7 x 8.1 inches |
| Manufacturer | Zound Industries |
| Included Components | Headphone, Removable 3.5mm Cable, User Manual, USB-C Charging Cable, Canvas carrying bag |
Warranty and Support
For detailed warranty information, please refer to the legal and safety information included with your product or visit the official Marshall website. For further assistance, troubleshooting, or product inquiries, you can:
- Consult the official User Manual (PDF) for comprehensive details.
- Visit the Marshall Store on Amazon for product information and support.
- Contact Marshall customer support directly through their official channels.
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