The Smart Tag for iPhone 4S/5 from iFi Systems connects wirelessly over Bluetooth to an iPhone 4S/5 so you can keep track of your smartphone using a downloadable app. The Smart Tag includes a key ring, so it can be attached to keys or other personal items. Using the phone, you can page the tag or just press the button on the tag to page the phone. Audible alerts sound on both the smartphone and tag when they are more than 25-30' apart, and you'll also receive and email with the location of your separated device. Additional conveniences include the Safe Location feature and ability to pair multiple tags with your phone.
iFi Systems Smart Tag for iPhone 4S/5