Aliph Jawbone Setting new standards for mobile voice clarity and personal style, the new Jawbone Bluetooth headset by Aliph represents a complete departure from the gadgetry of the mobile headset industry. Originally developed for military use in extreme environments, Jawbone features NoiseAssassin--a proprietary technology that eliminates background noise from mobile phone conversations. Jawbone is the only Bluetooth headset with a Voice Activity Sensor (VAS) that actually feels your speech, which helps Jawbone distinguish your voice from background noise Widely recognized as the best Bluetooth headset on the market, the new Jawbone is 50 percent smaller than the original, award-winning Jawbone, and offers over 4 hours of talk time. Military-Grade NoiseAssassin Technology Developed over years of research for the Defense Advanced Research Projects Agency (DARPA), Jawbone's NoiseAssassin eliminates real world noise better than competing headset because it's the only hands free device that accurately separates human speech from ambient noise. Unmatched in its ability to remove noise from loud environments like busy streets, cars, crowded cafes, and airports, NoiseAssassin is comprised of two features unique to Jawbone: a patented Voice Activity Sensor (VAS) and proprietary Digital Signal Processing (DSP) algorithms. Jawbone is the only Bluetooth headset with a VAS that feels the speech vibrations from your jaw. This enables Jawbone to capture the distinct frequencies of your voice. Proprietary DSP algorithms work in concert with two powerful microphones and the VAS to accurately model surrounding noise and aggressively eliminate it from the conversation. Conventional noise suppression headsets do not have a Voice Activity Sensor and can only estimate when speech is occurring. This causes pe