Jawbone has introduced its new Jawbone Era Bluetooth headset. The Era is touted by the company as “the first and only headset with a built-in accelerometer,” allowing users to shake the headset to put it in pairing mode, and tap it to answer or end phone calls. Other features include a 25% larger wideband speaker for better audio quality, NoiseAssassin 3.0 technology, and a built-in processor with serial flash storage to allow for apps, including a new Caller ID app that identifies callers by name in what is described as a “friendly, non-robotic voice.” The Jawbone Era comes in four unique designs and is available now for $129.