iTag is an ingenious innovation that electronically connects with Apple or Android devices with a tiny electronic key fob. Easily paired with a compatible smartphone or tablet, the iTag can instantly alert a user if a cell phone and set of keys are separated by more than 25 feet or can be used to trigger a smartphone to beep when it's been misplaced. This anti-lost device adopts latest bluetooth 4.0 low consumption technology, and through corresponding app to realize all the functions. The ultra small size and light weight ensures maximum convenience and portability. It can effectively protect your kids, pets or valuables form being stolen or lost within 25m effective distance range, when out of this range your phone and this iTag will automatically ring for a timely warning. It can also be used as a excellent remote control seflie shutter or voice recorder. The location function is extremely perfect for road nerds to exactly find their cars. Benefiting from the built-in low consumption bluetooth 4.0, the battery can last for about 6 months. What's more you can preset 10 devices in one phone at the same time.