About iTag: This anti-lost adopts latest bluetooth 4.0 low consumption technology, and through corresponding app to realize all  the functions. 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 and 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 1 year. What's more you can preset 8 devices in one phone at the same time. The ultra small size and light weight ensures maximum convenience and portability. Main Features: Anti-Lost alarm tracer function, you don't have to worry about lost your mobile phone anymore parking site searchingRemote control shutter(self-portrait)Voice recordingParking site searchingAnti-lostFind stuff Product Specifications: Compatible Device:For iPhone 4/4s/5/5s/5c/6/6plus iTouch 5 iPad 3/4/mini and Android system,Bluetooth 4.0  Smartphone(Android 4.3 version and up-grade version)Bluetooth version:Bluetooth 4.0 low energy consumptionWorking distance: 25m(outdoor environment)Battery: CR 2032 lithium coin battery, last about half a yearProduct weight : 8 gProduct size (L x W x H) : 5.2 x 3.1 x 1.1 cm / 2.0 x 1.2 x 0.4 inches Package Includes: 1 x Bluetooth Anti-lost( Including batteries)1 x User Manual