Similar symptoms can have different causes
A blocked filter, weak battery, moisture, damaged receiver, microphone fault or loose connection can create similar symptoms. Technical testing is required for a reliable distinction.
What we check
- Microphone openings and sound input
- Receiver and sound output
- Battery compartment or charging contacts
- Filters, tubing and physical connections
- Moisture and oxidation indicators
- Overall device performance
Not every fault can be repaired. Repairability, parts and the scope of work can only be assessed after the device has been inspected.