Enjoy wireless freedom while on digital calls and listening to music from your home or office with the Voyager 4320 Bluetooth Stereo Headset from Poly. Designed for high comfort and versatility for unified communications applications, this Zoom certified on-ear headset features a flexible boom with dual microphones that use Acoustic Fence technology to reduce background noise. Additionally, the Voyager 4320 UC may be simultaneously connected to two separate Bluetooth devices for easy switching, and it remembers up to eight devices. A BT700 USB-C dongle is included to add Bluetooth 5.2 support to laptops and desktop computers.Enjoy wireless freedom while on digital calls and listening to music from your home or office with the Voyager 4320 Bluetooth Stereo Headset from Poly. Designed for high comfort and versatility for unified communications applications, this Zoom certified on-ear headset features a flexible boom with dual microphones that use Acoustic Fence technology to reduce background noise. Additionally, the Voyager 4320 UC may be simultaneously connected to two separate Bluetooth devices for easy switching, and it remembers up to eight devices. A BT700 USB-C dongle is included to add Bluetooth 5.2 support to laptops and desktop computers.