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Clicking sound in both earcups | SoundComm™ B40 headset
Be sure the radio is within range of its base station.
The wireless radio connected to the headset might be out of range of its base station. This can cause interference, poor or intermittent microphone or headphones. Try moving the radio closer to its base station.
Plug in a different pair of headphones.
Connect another pair of headphones to the audio device to determine if the issue is with the device or its settings.
Determine if the issue occurs with ANR off.
If the problem continually occurs when ANR (Acoustic Noise Reduction) is off, then the issue could be the signal coming into the headset from the intercom. Inspect the integrity of the intercom connections and, if possible, try another headset.
Install new double-A alkaline batteries.
Remove the batteries from you product, then insert new batteries. Check that the + and – markings on the batteries match the markings in the battery compartment. (Note: Rechargeable batteries are not recommended. Use alkaline batteries when possible.)