Plantronics 29960-70

6-Pack Voice Tubes - Microphone Tubes
H81, H91, H101, H141, H171, H251, H261, H351, H361
$39.95 from an Authorized Plantronics Distributor
 

Replacement voice tubes for Plantronics H81, H91, H101, H171, H251, H261, H351, and H361.  This microphone tube extension is required for crisp, clear communication when using a headset.  It  is recommended by the Plantronics, the manufacturer, to be replaced every 6-month.   With the multi-colored value pack of voice tubes, many companies will use the same color of voice tube to distinguish different team members when competing for sales goals.