Amazing little gadget perfect for making props and masks for Halloween/Cosplay. Works straight out of the box and adding the semi-spheres and holders really added to the look. Very easy to programme the eyes to different styles, I selected the Dragon Eyes for what I needed. (Found that the voice changer option was set to 'true' in the Dragon Eyes config file, so changed that out to 'false' to get even better performance than the attached video shows). Can run off a battery for portable use and amazing value for money for what this offers. I haven't even started on what these can do when you programme the buttons and add microphone/speakers to use the inbuilt voice changer function. You can even split the eyes apart and add a cable to get them further away from each other. Very fast delivery from Pi-Hut on these and very good packaging to protect them as well. Great service!