Wirelessly adds GPS to iPad 2, iPad, iPod touch, iPhone and other Bluetooth-enabled smartphones, tablets and laptops * Allows your device to be used with most apps that require GPS, including apps for car and marine navigation, golfing, geocaching, hiking, GPS tracking, cycling, running, social networking and more. * Rechargeable battery lasts up to 8.5 hours of continuous use and charges via the included USB cable * Small portable design. 2.25" x 2.25" x .75". Works anywhere in the world. * Includes 12V car charger, a non-slip pad for use in a car or boat, and an adjustable strap to attach to a backpack or to use as an armband