NSD Swim Trainer System - NSD Spinner

Your Own Digital Swim Coach: NSD Swim Tracker logs time & speed, counts strokes & calories, measures distance between strokes & more to help you improve. No other swim aid we've seen does so much. Inclusions: Belt & 2 tethers Turns Any Pool Into an Endless Swim Lab: Simply attach 1 tether to your swim belt & 1 to any poolside fixture. Works for swim-in-place resistance training in ponds, too.  Record Your Swim: Want to critique your performance? Simply switch to video mode & easily capture real-time video footage complete with play-by-play statistics. Why pay for expensive swim lessons? Get Fitness Data in Real Time: Your NSD swim monitor has Bluetooth 4.0, so it delivers your data – from strokes to SWOLF scores – directly to your phone or tablet. Works with only iOS device. Download NSD Simmer on iOS App

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