Up to 4hrs. talk time & up to 8 days standby by time / Up to 33 Foot (range) / Supports Multipoint / Voice Activity Sensor (VAS) 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