The hipKey's battery is supposed to last between two and four weeks between charging. The iPhone app is available free on the App Store, while the device itself is $90 through the Apple Online Store.The hipKey is a high tech way of keeping track of your valuables. Simply attach the device to the item of your choice and you're ready to go. Made of a sculptured one-piece anodized aluminum ring surrounded by high-quality plastic parts, its sleek oval form fits perfectly in your palm or pocket. You can even attach it to your keys.
Alarm mode - Warns you if you forget your iPhone or iPad or if someone attempts to steal it.
Child mode - Alerts you if your child wanders too far away from you.
Motion mode - Put hipKey in your bag and you are alerted if someone moves it.
Find Me mode - Quickly find your iPhone, iPad, or your keys at any time.
Article Link: hipKey Proximity Sensor for iOS Devices Now Available Through Apple Online Store