MYNT Tracker - Key Locator, Wallet Tracker, Phone Finder, Remote Control, Find Your Valuable Item Near and Far (Black) Award winning - Won Best Design Award of Red Dot 2016 World's thinnest - 1/8" thin tracker that gives you a warning when you lose your key, wallet, and phone. Better impact resistance than all other trackers with steel casing Universal smart remote to control your smartphone to make selfie shots, play music, and control PPT on MacBook. Battery last up to one year under standby, will last three to six months under normal use