Cardiio uses your iPhone to measure and monitor your heart rate.
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iKlip Universal Microphone Stand Adapter for iPad - Apple Store (U.S.)
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Nest Thermostat - $249 Cut Down The A/C Bill. Install a Nest thermostat in your home to easily program your thermostat to be efficient and turn off when you are not in the house — you can even do this remotely over your iPhone. The device can even track motion to set a schedule automatically. houses, nest thermostat, energy savings, devic, nests, month bill, apartments, automat, tech gadgets
The Nest thermostat is an awesome glimpse into the future.