LifeBEAM's smart hat functions as a heart rate monitor via your forehead that also measures cadence and calories burnt. Its sensors are of optical heart-rate with a 3-axis accelerometer. It has two modules with Bluetooth 4.0 /BLE and ANT+ connectivity. It's compatible with your smartphone fitness devices and apps with HR functions, and a cycling computer. Finally, it has a small hidden rechargeable 15-hour life battery, Dri Fit design, and Velcro adjustable.