2016 Discovery 4



Always store headphones safely when they are not in use. Do not leave them unsecured as they may cause injury in the event of sudden braking or impact.

Sustained exposure to high sound levels (greater than 85 decibels) can damage your hearing.

  1. Press to switch the headphones on/off.

  2. Press to change the audio channel.

  3. Rotate to adjust the headphone volume.

  4. The status LED indicator lamp:

    When a signal is being received, the lamp will illuminate continuously.

    When a signal is not being received, the lamp will flash.

    When the battery power is low, the lamp will flash and then go out after a short delay.

  5. The battery cover retaining screw.

  6. The battery access cover.

When the battery power is low, the headphones will emit a beeping sound every 90 seconds.

To replace the batteries, use the following the procedure:

  1. Remove the battery access cover retaining screw (5).

  2. Pull the cover (6) away from the headphones.

  3. Install the new AAA batteries.


    Make sure that the polarity of the batteries matches that shown inside the headphone’s battery compartment.

  4. Replace the battery access cover.


    The headphones will not operate if the batteries are fitted incorrectly.


    Under normal usage, the expected battery life is 6 months.


    Always use good quality batteries of the same type.

Used batteries must be disposed of correctly, as they contain harmful substances. Seek advice on battery disposal from a Retailer/Authorized Repairer and/or the local authority.