Poly Sync 20 speakerphone: Wireless or Wired Connectivity: The Poly Sync 20 offers both wireless and wired options: Bluetooth v5.1: Enjoy wireless freedom by connecting your device via Bluetooth. Built-in USB-A Cable: If you prefer a direct connection, use the 70cm USB-A cable included with the speakerphone. Microphone Array: The speakerphone features a three-microphone steerable array that captures voices within a 2-meter range. This ensures clear and focused audio during calls or conferences. Speaker Quality: Equipped with a 40 mm driver and dual passive radiators, the Poly Sync 20 delivers impressive sound quality. Whether you�re listening to music or participating in a virtual meeting, the audio experience is enhanced.