WAHOO RUN SET I

Premium heart rate belt & sensor key. Transfers your heart rate data through the wahoo fitness sensor key wiressly into your iPhone. Comfortable, elastic fabric strap to minimize chance of chaffing, strap can be hand washed. Accurate and reliable, records data even when receiver communication is interrupted. Two-snap connection is easy and fast and includes adjustable length strap. Sends and receives signals up to 10 feet, unobstructed. Compatible with any ANT+ receiving device. Waterproof up to 5 feet. Replaceable 3 volt CR2032 coin cell battery.