[. . . ] [. . . ] Plantronics, the logo design, Plantronics and logo design combined are trademarks or registered trademarks of Plantronics, Inc. 69493-01 (03-05) USER GUIDE MS260 / MS250 1 3 MS260 2 2" 50. 8 mm 4 MS250 5 P/N 67712-01 [. . . ] [. . . ]