Monoprice SonicSolace™ II Active Noise Cancelling (ANC) Over Ear Headphones

Safety Warnings and Guidelines

Please read this entire manual before using this device, paying extra attention to these safety warnings and guidelines. Please keep this manual in a safe place for future reference.

• Do not expose this device to water or moisture of any kind.
• Do not expose this device to excessively high temperatures.
• Do not expose this device to excessive vibration, extreme force, shock, or fluctuations in temperature or humidity.
• Do not use this device while operating a motor vehicle, heavy equipment, walking in traffic, or any other situation in which situational awareness is a key to safety.
• Avoid prolonged exposure to excessive volume levels, which could cause hearing damage. Reduce the volume to minimum before wearing these headphones, then increase the volume to a comfortable listening level.
• This device contains a Lithium battery. Dispose of this device only in accordance with local, state, or federal regulations for electronic waste.
• Charge the battery before first use and at least once every three months to keep it fresh and capable of holding a full charge.
• Clean using a soft, dry cloth only. Do not use chemical cleaners, solvents, or detergents. For stubborn deposits, moisten the cloth with warm water.
• This device has no user serviceable parts. Do not attempt to open, service, or modify this device.

Customer Service

The Monoprice Customer Service department is dedicated to ensuring that your ordering, purchasing, and delivery experience is second to none. If you have any problem with your order, please give us an opportunity to make it right. You can contact a Monoprice Customer Service representative through the Live Chat link on our website www.monoprice.com or via email at support@monoprice.com. Check the website for support times and links.

Package Contents

Please take an inventory of the package contents to ensure you have all the items listed below. If anything is missing or damaged, please contact Monoprice Customer Service for a replacement.

• 1x SonicSolace™ II Headphones
• 1x Storage Box
• 1x USB-C® Charging Cable
• 1x 3.5mm Audio Cable
• 1x User's Manual

Product Overview

A detailed image shows the Monoprice SonicSolace™ II Active Noise Cancelling Over Ear Headphones. The headphones are black, with plush earcups and a padded headband. The left earcup has the 'IIIP' logo.

The following components are identified on the right earcup:

1. Volume+/Next Track Button: Controls volume and track skipping.
2. Multifunction Button (MFB): Used for power, pairing, play/pause, call management, and voice assistant activation.
3. Volume-/Previous Track Button: Controls volume and track skipping.
4. USB-C® Charging Port: For charging the headphones.
5. Microphone: For voice calls.
6. Active Noise Cancelling (ANC) Button: Toggles ANC on/off.
7. 3.5mm Audio Jack: For wired audio connection.

Notes:

• The indicator light between the USB-C® Charging Port and the Microphone is the Bluetooth® LED.
• The indicator light between the ANC Button and the 3.5mm Audio Jack is the ANC LED.

Charging

When the headphones indicate "Battery low," they need to be charged. Follow these steps:

1. Plug one end of the included USB-C® Charging Cable into the USB-C Charging Port on the headphones. Plug the other end into a USB power source (e.g., computer, wall charger, power bank - not included). The Bluetooth LED will illuminate solid red, indicating charging is in progress. A full charge takes approximately 2-3 hours. Note: If the headphones are powered on, they will automatically turn off when connected to a USB charging source.
2. When charging is complete, the Bluetooth LED will illuminate solid blue.
3. Unplug the USB-C Charging Cable from the headphones and the USB power source.

Pairing

1. With the headphones powered off, press and hold the MFB for 5 seconds to turn them on and enter Bluetooth® pairing mode. The Bluetooth LED will flash red and blue alternately, indicating pairing mode.
2. Open the Bluetooth settings on your mobile device and scan for nearby Bluetooth devices.
3. Locate and select the "MP43239" entry. If prompted for a passcode, enter "0000" (four zeros). Once connected, the Bluetooth LED will flash blue, indicating successful pairing.

Note: If no Bluetooth devices are paired within 5 minutes, the headphones will automatically turn off.

Operation

• Power On: With headphones powered off, press and hold the MFB until the Bluetooth LED flashes blue and the headphones turn on.
• Power Off: With headphones powered on, press and hold the MFB until the Bluetooth LED flashes red and the headphones turn off.
• Bluetooth Pairing Mode: With headphones powered off, press and hold the MFB for 5 seconds to turn them on and enter pairing mode. The Bluetooth LED will flash red and blue alternately. (Note: If not paired within 5 minutes, they will automatically turn off.)
• Play/Pause Audio: With audio playing, momentarily press the MFB to pause playback. With audio paused, momentarily press the MFB to resume playback.
• Call Management: When an incoming call is received, momentarily press the MFB to answer the call. Press and hold the MFB for at least 2 seconds to reject the call. While a call is in progress, momentarily press the MFB to hang up.
• Voice Assistant: Double press the MFB to activate your device's voice assistant.
• Volume Up: With audio playing, momentarily press the Volume+/Next Track Button to increase the volume level.
• Volume Down: With audio playing, momentarily press the Volume-/Previous Track Button to decrease the volume level.
• Next Track: With audio playing, press and hold the Volume+/Next Track Button to skip forward to the next track.
• Previous Track: With audio playing, press and hold the Volume-/Previous Track Button to skip back to the previous track.
• ANC Control: Use the Active Noise Cancelling (ANC) Button to turn ANC on or off. The ANC LED illuminates solid green when ANC is on.

Technical Support

Monoprice is pleased to provide free, live, online technical support to assist you with any questions you may have about installation, setup, troubleshooting, or product recommendations. If you ever need assistance with your new product, please come online to talk to one of our friendly and knowledgeable Tech Support Associates. Technical support is available through the online chat button on our website www.monoprice.com or through email by sending a message to tech@monoprice.com. Check the website for support times and links.

To download the latest drivers, firmware, manuals, etc., go to www.monoprice.com and type the P/N (43239) into the search bar. If available, support files are linked at the bottom of the product page.

Specifications

Regulatory Compliance

Notice for FCC

This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Modifying the equipment without Monoprice's authorization may result in the equipment no longer complying with FCC requirements for Class B digital devices. In that event, your right to use the equipment may be limited by FCC regulations, and you may be required to correct any interference to radio or television communications at your own expense.

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

Radio Notice for FCC

Caution: This FCC Part 15 radio device operates on a non-interference basis with other devices operating at this frequency. Any changes or modification to said product not expressly approved by Monoprice, including the use of non-approved antennas, could void the user's authority to operate this device.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

EU/UK Compliance

Hereby, Monoprice Inc. declares that the radio equipment type Bluetooth Headphones is in compliance with Directives 2014/53/EU and Radio Equipment Regulations 2017. The full text of the declaration of Conformity is available at the following internet address: https://www.monoprice.eu/.

[CE logo] [UKCA logo]

Disposal and Recycling Information

[Recycling symbol indicating separate disposal for electrical waste]

This product should be disposed of separately from regular household waste streams. It is your responsibility to dispose of this and other electrical and electronics products via designated collection facilities appointed by the government or local authorities. Correct disposal and recycling will help prevent potential negative consequences to the environment and human health. For more detailed information about the disposal of your unwanted product, please contact your local authorities, waste disposal service, or the shop where you purchased the product.

Monoprice™, SonicSolace™, and all Monoprice logos are trademarks of Monoprice Inc. USB Type-C® and USB-C® are registered trademarks of USB Implementers Forum. The Bluetooth® word mark and logos are registered trademarks of Bluetooth SIG, Inc. Qualcomm® is a trademark of Qualcomm Incorporated, registered in the United States and other countries. cVc™ Echo Cancelling and Noise Suppression is a trademark of Qualcomm Technologies International, Ltd. Qualcomm® cVc™ Echo Cancelling and Noise Suppression is a product of Qualcomm Technologies International, Ltd.