Trick gave a little crooked smile at her. "I had originally designed this for a...client, but they never picked it up," he explained, gently clipping the bracelet around her wrist. "But, forewarning, if I find out that you're doing anything 'immoral' with my gadget then I can, and will, deactivate this and find you." The short, ginger sounded so nonchalant about it that he seemed like he was almost joking. Which he wasn't. "Now, what you need to do to turn it on is simply pinch the bracelet where the rough patches are," he told her, taking her free hand to show her where the patches were. "Then to turn it off, do the same thing."