The Savi 8200 Series headset system lets you connect in confidence by managing PC, mobile and desk phone calls with ease. DECT technology enables long-range roaming up to 180 m in line of sight, or up to 55 m in a typical office environment and provides outstanding audio quality for clear communication without interference. Other features: - Listening to music and media in premium hi-fi DECT stereo - Talk time of up to 13 hours - Standby time of up to 50 hours - Charge time of 3 hours - DECT and Bluetooth v4.2 wireless technologies - Noise-cancelling microphone - Active noise cancelling (ANC) - Microphone wideband frequency response: 100 Hz - 6.8 kHz - Call controls: Call answer/end, mute, volume +/-, ANC on/off, power on/off 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. Please note: We recommend using Poly Lens software with this product. This enables central management of video devices, headsets, phones and webcams. Other benefits: - Custom device settings - Always the latest firmware - Easy troubleshooting tool - Fast device integration - Dashboard layout with intelligent news feed