Starting a Better Life in Shopping.Features:Two-way anti lostA key finding thingsThe location informationUltra-low power consumptionMultitasking managementSpecifications:Bluetooth version: Bluetooth 4.0 Low EnergyCompatible Phone: iPhone4S/5/5S/5C， iPad Mini， iTouch 5， iPad 3/4， iPad Air and Andriod system with Bluetooth4.0 Smartphone（Andriod 4.3 version and up-grade version)Working distance: About 75 Feet (without barrier )Suitable for: Wallet， Car， Kid， Pets， Bags，Suitcase or other belongings.Battery : CR2032 Lithium Coin Battery (Not included)Standby time: 6 monthNet Weight: 9 gramAvailable colors: BlackCertificates: CE/ROHS/EPLApp Name: iTracing (Free of charge)Connects up to 10 iTag unitApp language: English， Chinese， French， SpanishCompatible Devices:iPhone5S/5C/5/4S，iPad 5th/4th/3rd gen，iPad mini，iPad Air，iPod touch(5th gen)Andriod system with bluetooth 4.0 Smartphone(Andriod 4.3 version and up-grade version)Size:51*30*10 mmPackage Included:1x bluetooth Tracker ( Battery Not Included)Embrace life， embrace shopping.