This little lightweight gadget clips onto your shoelace to accurately assess your running performance. It works with many of the Suunto heart rate monitors to let you measure and record your speed & distance information when walking or running. It's a great tool for those who want to optimize their training.
• Durable
• Compatible with your Suunto ANT+ enabled device.
• User-replaceable battery runs for 400 hours
• Water-resistant up to 30m
• Automatically functions on/off