The Poly Savi 7300 headset easily connects to desk phones and softphones making it the perfect solution for your company's security needs. Other features: - Poly Office Series wireless DECT headset - Up to twice the density in comparison to other DECT headsets - Microsoft Teams-certified DECT headset with special Microsoft Teams button - Noise cancelling microphone with Poly Acoustic Fence technology - Range: up to 180 m (direct line of sight) - Connectivity: Landline phone and PC Battery: Battery capacity: 500 mAH Battery type: Technician replaceable (lithium ion polymer) Talk time: up to 13 hours Charge time: two hours Standby time: up to 52 hours Calls can be answered/ended through the headset: manufacturer-specific Electronic Hook Switch (EHS) module required (sold separately). Please inform us of your phone model so that we can find the compatible EHS cable.