Plantronics 45647-04 Replacement Headset Price Change The replacement headset for the Plantronics S10, T10 & T20 has changed to $59.95. Plantronics 45647-04 replacement headset is a stock item and comes with a headband, 3 ear hook pieces, pivot ring and leatherette ear cushion. Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website