Product Features Advanced Bluetooth headset in Midnight design with NoiseAssasin 3.0 noise and wind canceling technology for clear communication / 25 percent larger wideband speaker that brings Hi-Definition audio as you talk on the phone, listen to music, and more/ Customizable features with MyTALK platform--download apps, set different languages, and more/ Jawbone battery meter automatically displays on iPhone (BlackBerry and others available at MyTALK)/ Up to 5.5 hours of talk time, up to 240 hours (10 days) of standby time