1PCS Car GPS Tracker Kids Pets Wallet Keys Alarm Locator Realtime Finder Tracker Racking Device GPS Locator Bluetooth version: Low Power Bluetooth 4.0 Compatible mobile phones: apply for iPhone 4/5/5/5/6/6/7, for iPad Mini, for iTouch 5, for iPad 3/4, for iPad Air and for Android system with Bluetooth 4.0 smartphones (version 4.3 of Android, need an upgrade) Working distance: about 75 feet (without obstacles) Apply to: wallets, cars, children, pets, bags, suitcases, or other items Lithium battery: CR2032 cell button (battery not included) Standby time: 6 months Net weight: approx. 13g Product size: 37 x 37 x 5.6mm/1.46 x 1.46 x 0.22" Certificates: CE/ROHS/EPL App Name: iTracing (Free of charge) Connects up to 10 iTag unit Package:1PCS*Bluetooth anti - loss device