Wahoo Fitness Blue HR StrapThe Wahoo™ Fitness Blue Heart Rate Strap is specifically built for the iPhone™ 4S to turn your phone into everything you need.
Heart rate monitor strap. - World's first Bluetooth™ Smart HR strap for the iPhone™ 4S. - Easy and fast to connect (2 snaps). - Adjustable length strap is included. - Accurate reading: reliable to the point that it records data even when the receiver communication is interrupted. - Strap: comfortable, fabric with elastic for stretch and reduced chafing. - Strap can be hand-washed for ease. Wireless for Bluetooth Smart phones. - Compatible with any Bluetooth Smart receiving device including the iPhone™ 4S. - Turns the phone into a training device. - Signals: sends and receives up to 10 feet (unobstructed). - Not compatible with the iPhone 3G, 3GS or 4. Compatible Apps: Wahoo fitness, MotionX, RunKeeper, Runmeter, Cyclemeter, MapMyRUN, MapMyRIDE, 321run, Endomondo and more. Ideal for running, cycling, fitness, and other athletic activities. Battery: 3 volt CR2032 coin cell. - Replaceable. Waterproof up to 5 feet. Weight: Pod: 17 grams. - Strap: 28 grams. - Total weight: 45 grams. Imported.