POLY Voyager 4320 Wireless Headset [Black]

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POLY Voyager 4320 Wireless Headset [Black] Battery Performance: Capacity: 560mAh.Type: Lithium-ion.Talk Time:Up to 25 hours (ANC Off, Online indicator Off – requires setting change via Poly Lens/Plantronics Hub).Up to 20 hours (ANC On, Online indicator Off – requires setting change via Poly Lens/Plantronics Hub).Up to 18 hours (ANC Off, Online indicator On – default setting).Listening Time:Up to 40 hours (ANC Off).Up to 24 hours (ANC On).Charge Time:Full charge in 2 hours.Standby Time:Up to 30 days.SoundGuard DIGITAL:G616 support limits the level to 102 dBSPL.Time-weighted average prevents average daily noise exposure from exceeding 85dBA.Requires Poly Lens desktop app to enable SoundGuard DIGITAL feature.Dimensions and Weight:Item Dimensions: 4.33 x 8.27 x 7.09 inches.Item Weight: 1.41 lbs. Show more