Logitech Pro Personal Video Collaboration Kit (Teams) 991-000344 Logitech Zone Wireless is the wireless headset specifically designed for busy workspaces. Great for talking, awesome for music, and serenity for when you just want to concentrate. Open workspaces are great for collaboration, but not so great when the noise around you makes it hard to concentrate. Active noise cancellation substantially reduces unwanted ambient sound, so you can get focused and stay focused. Great for Music and Talking with immersive sound for listening to music and a noise-canceling mic that ensures that your voice is heard on the other end of a call?not the noise around you. Intuitive and simple controls to adjust volume, play and pause music, start and end calls, activate/mute the microphone, power on/off, active noise cancellation, and Bluetooth pairing. Also supports wireless Qi charging. Designed to be comfortable for use all day, every day. The silicone-padded headband is lightweight and provides just the right clamping force for a great fit. Soft leatherette ear pads are cushiony and breathable, so your ears don?t get hot. Connect to your computer and smartphone simultaneously and seamlessly switch between connected devices at will. The 30m (100') wireless range provides freedom to roam while staying connected. Download the Logi Tune App on your smartphone and manage mute, view charging status, modulate sidetone controls, and tweak the 5-band EQ sliders (or choose one of the custom presets), plus download software updates. Works with common calling applications across almost all platforms and operating systems. Package Contents: Wireless headset, USB-A dongle, Charging cable, Travel Bag and User documentation. Headset: H - 6.88 in (174.7mm),W -6.96 in (176.7mm),D - 2.78 in (70.7mm),Weight - 6.4 oz (.1808 Kg). Ear pad dimensions: H - 2.78 in (70.7mm), W -2.78 in (70.7mm), D -.65 in (16.4mm). Dongle:L - .85 in (21.5mm), W - .54 in (13.6mm), D - .24 in (6mm). Microphone:Type: Omni-directional dual MEMS mic array, Frequency response: 85-20kHz @-3dB (ECM mic freq resp). Speakers:Frequency response (music mode): 30-13kHz @ -10dB Frequency response (talk mode): 100-8kHz per TIA920. Battery: Built-in battery (Lithium ion) Battery life (talk time): 14 hrs (ANC on), 15 hrs (ANC Off) Battery life (listening time): 14 hrs (ANC on), 16 hrs (ANC Off), Charging:Qi Wireless charging enabled, Charging cable: 51 in (130 cm), Wireless range: Up to 30m /100 ft (open field line of sight).