SMK-Link Nano Bluetooth Class 2 v3.0+EDR Dongle (VP6493) The VP6493 Nano Bluetooth Class 2 v3.0+EDR Dongle is about the size of a penny and protruding a mere 0.25-inch in length when plugged in to the PC's USB port. The round-edge design ensures the dongle doesn't catch on other loose items, i.e. cables or mesh material, in the computer carrying case when traveling. This miniature dongle offers similar convenience as a built-in Bluetooth-enabled system - no more constantly plug and unplug, just leave it in and never misplace your Bluetooth dongle again!