Based on manufacturer data from Poly (formerly Plantronics) : Specification Connectivity Bluetooth 3.0 (Backwards compatible with 4.0+) Charge Time ~90 minutes for a full charge Weight Range Up to 33 feet (10 meters) User Feedback Highlights
: Offers up to 7 hours of talk time and 11 days of standby. The newer Go to product viewer dialog for this item. model increases talk time to 10 hours. Product Specifications best buy plantronics voyager legend bluetooth headset
: Uses three microphones and digital signal processing (DSP) to separate your voice from up to 80 dB of background noise. Based on manufacturer data from Poly (formerly Plantronics)