Features: Two-way anti lost A key finding things The location information Ultra-low power consumption Multitasking management Specifications: Bluetooth version: Bluetooth 4.0 Low Energy Compatible Phone: iPhone4S/5/5S/5C, iPad Mini, iTouch 5, iPad 3/4, iPad Air and Andriod system with Bluetooth 4.0 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 month Net Weight: 9 gram Available colors: Black Certificates: CE/ROHS/EPL App Name: iTracing (Free of charge) Connects up to 10 iTag unit App language: English, Chinese, French, Spanish Compatible 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 mm color: black/green/rose red/white Package Included: 1x bluetooth Tracker ( Battery Not Included)