It’s from Crave, who produced the world’s first crowdfunding vibrator in 2012.
The Vesper is a small, stainless steel pendant (optionally gold-plated) and runs at three variable speeds. The company’s taking pre-orders now for their first production run (prices start under $50), and are throwing in free engraving.
The Sexy Side of Wearable Tech
(via The Mary Sue)