If you’re a little skiddish when it comes ghostly things, you might need a little insurance that they aren’t around you. Of course, with a cell phone strap like this, it might instead confirm that your worst fears have come true. To find out, you just pick up this Japanese strap, then press the button. If the button glows a calm blue, you’re safe. If it glows bright red, well then you might be in the midst of some ghosts. The strap will cost you $22 and perhaps your sanity, depending on how often it began glowing red.