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  • How do I check/update the firmware version on my MH40 Wireless Gen 2 Headphones?

    Updating your Firmware


    If you haven't already, please install the "M&D Connect" app on your mobile device.


    Download on the App Store Get it on Google Play Tencent


    Once downloaded, see if your headphones are recognized by the app. They must be paired to your phone.

    The app will inform you if an update is available, as long as your headphones are sufficiently charged.

    To see the latest firmware changes for your MH40 Wireless Gen 2, visit the changelog. 


    Checking your Firmware Version

    To check the firmware version of your MH40 Wireless (Gen2), first tap the name of your headphones.

    If you need a firmware update - the app will automatically prompt you at this point, otherwise, you will see "Your headphones are up to date". To determine exactly what firmware version you are on for support purposes, or change other settings of your product, tap the "Cog" Icon at the top right of the application.


    On the bottom of your application, you will see your M&D Connect Application version as well as the firmware version of your MH40 Wireless Headphones (Gen2), which is highlighted in the yellow box below:

  • How do I remove/replace the ear pads on my MH40 Wireless Gen 2 Headphones?
    The ear pads for your MH40 Wireless headphones are connected to the headphone via magnets for easy removal and replacement.

    To remove, gently pull the ear pad off the headphone.
    To attach, line up holes on back of ear pads with locator pins on ear cups.
    The magnets will help pull and lock the ear pads into place.
  • How do I clean and maintain my MH40 Wireless Gen 2 Headphones?

    To clean your ear pads and headphones, simply use a soft, slightly damp cloth - never apply chemicals.

    Do not soak, submerge or allow moisture to enter near the drivers or cable jacks.

    Do not drop, sit on, or allow the headphones to be exposed to water, moisture, or temperature extremes.

    When not in use, make sure to keep your headphones in the provided carrying case in order to protect them from dirt and other substances. To avoid damage, do not store other items in the canvas case along with your headphones

     Temperature Range

    Operate and store this product within the temperature range of -4°F to 113°F (-20°C to 45°C) only. Charge the battery where the temperature is between 41°F and 104°F (5°C and 40°C) only.