Up to 4hrs. talk time & up to 8 days standby by time / At least 33ft. (range) / Supports Multipoint / Voice Activity Sensor (VAS) Then Samson said, "With a donkeys jawbone I have made donkeys of them. With a donkeys jawbone I have killed a thousand men." The Jawbone Prime Bluetooth Headset and your Cell Phone can Communicate to millions. Thats how dependable this Jawbone headset is. Its among the most comfortable and stylish. Jawbone Prime is designed to help impress others with what you say. Jawbone has been able to eliminate real world noise better than any other headset because it is the only headset that can accurately separate speech from ambient noise. Jawbone PRIME has even better background noise elimination than the previous generations. NoiseAssassin 2.0 delivers an order of magnitude improvement in the noisiest environments (6 to 9dB) extracting even more noise while keeping your voice natural. Let this Jawbone Prime Headset influence by talking. Jawbone Prime uses an Algorithm that digitally fuses together the best Audio from its two-electret microphones (the clean preserved high-end frequencies of speech) and its Patented Voice Activity Sensor (the low-end frequencies of speech) to create a single, natural sounding speech signal. The industry-standard microphone approach fails as the microphones become saturated with wind noise distorting the low-end frequencies of speech (as noticed when you blow over a soda-bottle). By leveraging some innovative DSP techniques and Jawbones proprietary Voice Activity Sensor (VAS) to reconstruct the missing speech, a wind solution that maintains the award-winning design without having to apply a visually disruptive windsock or baffle to physically Block the wind is implemented. # Jawbone Prime also has a subtle wind feedback mechanism built into the headset that gently alerts you when voice clarity is compromised due to wind gusts so that you can self-correct. While Jawbone Prime does not completely remove the impact of wind, it does more than any other headset to remove wind and alert you of the fact that wind may be affecting the conversation. Talk time: up to 4.5hrs. # Standby time: more than 8 days # Range: at least 33ft. (10m) # Supports Multipoint # Supports Bluetooth 2.1 + EDR, 2.0, 1.1, & 1.0 # Includes: Wall Charger, USB Cable, 3 Ear buds, 3 New Fit Ear buds, 1 Ear loop