1、Bluetooth version: Bluetooth 0 low energy consumption. 2、Compatible Phone: for iPhone4S/5/5S/5C, for iPad Mini, for iTouch 5, for iPad 3/4, for iPad Air and for Andriod system with Bluetooth 0 Smartphone(Andriod 3 version and up‑grade version) 3、Working distance: About 75 Feet (without barrier) 4、Suitable for: Wallet, Car, Kid, Pets, Bags,Suitcase or other belongings. 5、Thin and delicate, Intelligent to remind you the important items. Description: 1. Bluetooth version: Bluetooth 4.0 Low Energy 2. Compatible Phone: for iPhone4S/5/5S/5C, for iPad Mini, for iTouch 5, for iPad 3/4, for iPad Air and for Andriod system with Bluetooth  4.0 Smartphone. 3. 4.0 Smartphone(Andriod 4.3 version and up-grade version) 4. Working distance: About 75 Feet (without barrier) 5. Suitable for: Wallet, Car, Kid, Pets, Bags,Suitcase or other belongings. 6. Battery : CR2032 Lithium Coin Battery 7. Standby time: 6 month 8. Net Weight: 9 gram 9. Available colors: Black/White/Green/Red 10. Certificates: CE/ROHS/EPL 11. App Name: iTracing (Free of charge) 12. Connects up to 10 iTag unit 13. App language: English, Chinese, French, Spanish Quick User Guide: 1. Check the phone's Bluetooth is turned on, if not, please open the phone's Bluetooth. 2.Download application iTracing and install it on your phone and open the app. If not, go to the respective application market download and install the necessary applications. Specification: Color: Pink/Black/White/Green Size: Approx.52mm*31mm*11mm Attention: Size may be slight inaccuracy due to different batches of the products, or hand measurement;  Color may be little different due to monitors. Please take real product as standard, thanks for your understanding!   Package Includes: 1 * Bluetooth Key Finder