Magical Motion Controls: Jawbone ERA is the first headset with a built-in accelerometer and patented MotionX technology. Out of the box, you can ShakeShake Jawbone ERA into pairing mode or TapTap to answer phone calls. And because Jawbone ERA is completely integrated with the online MyTALK platform, it will continue to gain functionality as we develop new motion applications. ShakeShake and TapTap is just the beginning..Keep Tabs on Battery Life: You'll never run out of juice with Jawbone ERA. To check battery status, glance at the battery meter that automatically displays in the status bar of your iPhone (BlackBerry and others available at MyTALK). Or, if your phone is out of reach, just press the TALK button on Jawbone ERA to hear an update: "About 5 hours of talk time remaining.".Jawbone ERA comes with one earbud and an optional binaural earloop, It's so light and comfortable, you'll probably forget you're even wearing it. Jawbone ERA also includes Jawbone's innovative Spout earbud, a breakthrough design that channels audio directly into your ear, providing the clearest sound..Bluetooth: Version 2.1; Supports simultaneous Multipoint (two live audio connections); Advanced Audio Distribution Profile (A2DP) 1.2, Hands-Free Profile (HFP) 1.5, Headset Profile (HSP) 1.1; Talk time: Up to 5.5 hours; Standby time: Up to 10 days (240 hours); PC compatibility: Windows 7, Vista XP; Mac OS X 10.5 and higher (for MyTALK apps and software updates).Listen in HD: Music, video and calls never sounded better. With its 10mm wideband speaker--our biggest, most powerful speaker yet (25 percent larger than previous models)--podcasts, Pandora tunes, YouTube videos, driving directions and more come vibrantly to life in full-spectrum, HD-quality sound. Jawbone ERA is also the most convenient way to enjoy all your mobile media and calls in one place. No more clunky headphones, no more tangled cords. You'll be totally hands-free and never miss a beat.