Replacement headset for Plantronics T10, T20, T50, S10 and S50 headset systems. Versatile headset converts from headband to over-the-ear style. Noise-cancelling microphone for crystal clear calls. Genuine Plantronics Accessories
You can also use any
27190-01 as an alternative headset if you don't like the original headset
that comes with the T10.