*** DISCONTINUED *** Plantronics' MX100 Cellular Headset is stable, discreet, and comfortable and provides superior sound clarity. Includes three interchangeable color covers and is compatible with most headset ready cellular phones. Comfort Fit The unique Flex Grip design produces an exceptionally stable, comfortable fit and allows for one-handed placement in the ear. Superior Sound Clarity Plantronics AcuSpeak technology allows you to be heard in almost any environment. Discreet Style You talked; we listened. The MX100 design is based on feedback from multiple research efforts. Consumers we asked felt strongly about having a discreet yet stable headset the MX100 is the answer. Custom Covers Customize your headset with three interchangeable color covers included with the MX100 Cellular headset. Three Variants Plantronics offers three variants of the MX100: one with a standard 2.5mm plug and two that plug directly into Nokia phones (see back for details). Nokia variants feature a call answer/end button. Important Adapter Information: MX100 Compatible with most headset-ready cellular phones including Motorola , Samsung , Audiovox , and Kyocera . Headset adapter required if your cellular phone does not have a headset jack. MX100 Product Sheet