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Audio Service ThinTube 3.0 Tubes Left$12.00
Audio Service ThinTubes 3.0 The ThinTube 3.0 tubing is the connection between your hearing aids and your ear. Always make sure that the tubing is free and has not been accidentally kinked or twisted. To ensure proper sound transmission, the tubes should be replaced from time to time.
At the latest, however, when they have become hard or discolored.