A video released by Amazon on Wednesday suggests the company has a 3-D smartphone in the works, NBC News reported. In the video, people fawn over a mystery device that's kept off-camera the whole time; however, it's pretty clear by the way they handle it that it's some sort of smartphone. Rumors have been circulating for months that Amazon looks to launch a smartphone equipped with a face-tracking 3-D interface. The e-commerce giant will unveil the mystery product at a June 18 event. Click through to see the video.