What do the tones in my Jabra Pro 9400 headset mean?

The tones in your Jabra Pro 9400 headset indicate the following:

• When wearing the headset and pressing (8-10 seconds) the Multi-function button, 3 ascending tones indicate the headset is on. 3 descending tones indicate the headset is off. Note that the headset turns on when you pick it up from the base.
• Headset beeps at 15 second intervals - The microphone is muted. The mute icon will also be displayed red on the base.
• Headset beeps at 20 second intervals - The battery is low.
• 3 descending tones indicate the headset is out of range and/or unable to pair with the base due to low battery level or wireless interference.