Poly Sync 40+ is design for virtual meetings using Teams or Zoom Meetings in a small conference room or small office up to 10-12 people. It comes complete with a BT600 USB-A dongle as well as a USB-A to USB-C adapter, so it can be used either USB-A or USB-C comptuers/devices. It has 3 microphones to optimal voice pickup no matter where you sit. It has re-chargeable Lithium-ion battery with 30 hours of talk time when fully charged. It also has noise and echo reduction. Poly Sync 40+ can also be pair together with another Sync 40 for larger meetings or conference rooms when more meeting are in the meeting. Key Features: 3 microphones array provide clear audio of the speaker’s voice. Microsoft Teams and Zoom Meeting Certified BT600 USB-A dongle included USB-A to USB-C adapter cable included It can also be paired with any Bluetooth device such as a smartphone 360˚ room coverage with active background and echo noise reduction IP64 dust and water resistant rated for protection against spills Microphone pickup: 8 ft (2.5 meters) Talk time: Up to 30 hours Windows and Apple Mac OS compatible Wirelessly connect 2 x Poly Sync 40 units together for larger meetings rooms (when connecting wirelessly to PC or smartphone via Bluetooth) Bluetooth version: Bluetooth 5.1 size: 28mm x 102mm x 273mm (1.5" x 4.0" x 10.7") Poly 2 year warranty Old Poly part # 218764-01 New HP part # 77P36AA What's in the box? Sync 40, Microsoft Teams Edition BT600 USB Dongle USB-A to USB-C Adapter Quick Start Guide