Does the GVIDO have a build-in speaker? GVIDO Customer Support December 03, 2017 22:13 Updated The device does not have a speaker so it does not generate any sound. Related articles Does the GVIDO offer backlighting? Can I install songs or videos? Can I use GVIDO without a desktop? Does it require a Bluetooth or a USB cable to connect GVIDO to the foot switch? Does the foot switch work with devices other than GVIDO (iPad, Android tablet, etc)?