Each Bond module features a capacitive touch sensor, Bluetooth, a vibration motor, an LED and a battery, induction charger and accelerometer. The module is affixed via magnets to a bracelet (or necklace) made out of wild rubber from the Amazon. The tiny device connects with iPhones and any Android phone with Bluetooth 4.0. If the wearer of one of the devices touches it for a second, their friend will get a one-second "tickle" (much like a phone vibration). Tickles can last up to five seconds and will appear as a different colour depending on how long it's touched for. If you swipe the Bond, it will send a "rainbow tickle".