With a variety of portable power accessories, most Scosche products are designed to keep gadgets up and running, not to get our own blood flowing. The company's new Bluetooth myTrek pulse monitor pairs with an iPhone or iPod touch to motivate you to keep going and going, however, pumping "inspiring" audio alerts through your headphones during a workout, while also tracking pulse, distance, speed, pace, and calories burned. The arm-strap uses a pair of LEDs, along with a photo sensor and accelerometer to capture vitals as it rests strapped to your forearm, providing five hours of continuous feedback before needing its own boost using the included USB cable. You'll need to have your iOS device within 33 feet of the device to record your workout, so the myTrek may be better suited for trips to the gym than, say, a run through the park in the rain. It's also rather pricey, at $130, but if you're already dropping a grand or two for your gym membership each year, a gadget that lets you elegantly track your progress may be within reach.