mono headset, convertible, Bluetooth 4.2, USB-A, unlimited talk time (hot swap battery)
mono headset, convertible, DECT, USB-A, unlimited talk time (hot swap battery)
mono headset, convertible, DECT, USB-C, unlimited talk time (hot swap battery)
mono headset, convertible, Bluetooth 4.2, USB-C, unlimited talk time (hot swap battery)
mono headset, convertible, DECT, USB-A, unlimited talk time (hot swap battery)