Jawbone PRIME Bluetooth Headset (Blah Blah Black) Best-In-Class Military-Grade Technology Noise assassin 2.0 Feature Delivers An Order Of Magnitude Improvement In The Noisiest Environments (6 Db9 Db), Extracting Even More Noise While Keeping The User's Voice Natural Virtually Estimates All Background Noise Patented Voice Activity Sensor (Vas) Accurately Detects & Removes The Presence Of Wind Provides Outstanding Voice Clarity Stylish, high-tech Bluetooth headset in black with unique undulating texture and excellent background noise elimination Latest in NoiseAssassin technology delivers improved noise elimination performance and an integrated digital approach to wind reduction Multipoint support for simultaneous connection to two audio sources, including a PC Up to 4.5 hours of talk time, up to 216 hours (9 days) of standby time What's in the Box: headset, three round earbuds, three Fit earbuds, one earloop, USB cable, AC wall adapter