DESC: Taking comfort and function to another level, the new Polar WearLink™ is the first soft transmitter belt ever produced. With the exclusive Polar transmitter technology engineered right into the fabric strap, the WearLink™ will fit any body shape and allow full freedom of movement. It will change the way you exercise. Taking comfort and function to another level, the new Polar WearLink™ transmitter is the first soft Polar transmitter belt ever produced. With the exclusive Polar transmitter technology engineered right into the fabric strap, the Polar WearLink™ will fit any body shape and allow full freedom of movement. It will change the way you exercise. Polar WearLink™ Transmitter Features: • Electrode engineered into fabric strap • Coded technology which eliminates interference from other HRM users • Changeable battery CR2025 • Battery life (2 years) • Replaceable fabric strap (Life of strap - 100 machine washings) • Water resistant