Lazer Lifebeam is a worldwide unique system for integrated heart rate measurement in a helmet. It can be used with smartphones, fitness apps, training devices or navigation devices with training functions via ANT+ and Bluetooth 4.0. The sensor is mounted using the special Mudcap and the extra padding with integrated sensor. The set contains: Special Mudcap, Transmitter, Sensor with integrated heart rate sensor, USB cable. The heart rate is measured via sensors in the helmet holder.