Pavlok is a wearable technology company that produces a device that helps users break bad habits. The company was founded in 2014 and is headquartered in Somerville, Massachusetts. The Pavlok device uses a combination of vibration, beep, and electric shock to help users break bad habits, such as smoking or nail-biting. The device can be controlled through a mobile app, which allows users to set goals and track their progress. Pavlok has been featured in a number of media outlets, including The New York Times and The Wall Street Journal.