Today we're featuring The Doppel Wristband that was just released this morning and is already a Kickstarter's Staff Pick. The Doppel wristband is truly like no other wearable tech out there. It doesn't record your pulse or movement. It's a simple device that pulses- either fast or slow, which influences your mood. The prototype has been tested on 250 people who claim they feel the effects of the device.