Marshall Monitor II A.N.C. User Manual

Getting Started

Press and hold the control button until the LED indicator flashes blue.
Select MONITOR II from the Bluetooth® list on your audio device.
Download the Marshall Bluetooth app and follow the instructions to set up the M button, ANC button, EQ settings, etc.

The Marshall Bluetooth app can be downloaded from Google Play or the App Store.

It is recommended to charge the battery before first use.

Product Components

Diagram showing the left ear cup of the headphones. Label I points to the left ear cup. Label II points to the multi-function control button. Label III points to the ANC mode button. Label IV points to the LED indicator. Label V points to the 3.5mm input. Label VI points to the USB-C charging port.

001. M button with customization options
002. ANC mode button
003. LED indicator
004. 3.5 mm input
005. USB-C port for charging
006. Multi-function control button

Control Button

Use the control button on the right ear cup to control sound, activate Bluetooth® pairing, and turn the headphones on or off.

Function	Action
Power On/Off	Press and hold for 2 seconds
Play/Pause	Press once
Skip Forward	Press right
Skip Backward	Press left
Fast Forward	Press and hold right
Rewind	Press and hold left
Increase Volume	Press up
Decrease Volume	Press down
Answer Call	Press once to answer/end call
Reject Call	Press twice to reject incoming call

LED Indicator

The LED indicator on the left ear cup shows the status of the headphones.

Indicator Status	Headphone Status
Solid Red-Orange-Yellow-Green	Charging (battery 0-100%)
White light flashes every 5 seconds	On, connected to a Bluetooth® device, audio paused
Flashing white light	Searching for previously connected devices
Flashing blue light	Bluetooth pairing mode
Off	Power off or playback via Bluetooth

Charging the Headphones

If the battery level is low, a sound alert will play.

To charge the battery, connect the headphones to a USB power source using the USB-C cable. Full charging takes approximately 2 hours. A 15-minute charge can provide up to 5 hours of wireless music playback.

ANC Mode Button

The Monitor II A.N.C. uses Active Noise Cancelling (ANC) technology, which constantly detects and measures ambient noise levels to control external sound. There are two ANC modes:

Active Noise Cancellation: Blocks ambient noise and focuses on the audio being played.
Monitor Mode: Activates ambient sounds to allow participation in conversations or awareness of announcements.

Use the ANC button to quickly switch between modes.

A short press switches between Active Noise Cancellation and Monitor Mode.
Press and hold for 2 seconds to turn ANC mode on or off.

The level of noise cancellation and monitoring can be adjusted in the Marshall Bluetooth app.

M Button

The M button can be customized to switch between three preset equalizer levels or to activate the voice assistant on the headphones or Google Assistant.

Go to the Marshall Bluetooth app and customize the M button in the M button settings menu.

Note: Voice assistant may not be available in your country and may require a separate account/agreement with the third-party provider.

3.5 mm Input

To use the Monitor II A.N.C. with a wired device, use the included 3.5 mm cable. Audio streaming via Bluetooth will stop after connecting. However, if the headphones are powered on, you can still use ANC.

When the 3.5 mm cable is disconnected, the headphones will attempt to reconnect to the last paired Bluetooth device.

Troubleshooting

Problem	Cause	Action
Cannot establish Bluetooth connection with device	Headphones are not in pairing mode.	Ensure headphones are off. Press and hold the control button for 4 seconds until the LED indicator flashes blue. Select MONITOR II from your device's Bluetooth list.
	Headphones are connected to a 3.5 mm cable.	Disconnect the 3.5 mm cable from the headphones before connecting via Bluetooth.
ANC not working	Headphones are not powered on.	Press and hold the control button for 2 seconds to turn on the headphones.
	ANC is not enabled.	Press and hold the ANC button for 2 seconds to enable ANC. Short press the ANC button to switch between ANC modes.
	ANC level is reduced in the Marshall Bluetooth app.	Go to the Marshall Bluetooth app and set the ANC level in the ANC settings menu.
Two MONITOR II entries in the device's Bluetooth list	Monitor II A.N.C. uses two Bluetooth connections: one for audio streaming and one for power-saving Bluetooth connection for the app.	This is normal operation and requires no action.
Headphones are unresponsive	A software error has occurred.	Perform a hardware reset: press and hold the M button while simultaneously pressing the control button. If the problem persists, perform a factory reset. Note: This will delete all user settings, and you will need to set up the headphones again after a factory reset. Press and hold the M button and the control button for 7 seconds until the LED indicator turns purple.

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