Features: 1.Andriod system withBluetooth-compatible4.0 Smartphone (Andriod 4.3 version and up-grade version) 2.4.0 smartphone (Andriod 4.3 version and up-grade version) Specifications: 1.Color: Black, Green, Pink, White 2.Size: Approx.5.2 x 3.1 x 1.1cm 3.Compatible Devices: iPhone 6/6 Plus/6s/6s Plus/5/5S/5C, iPad Mini, iTouch 5, iPad 3/4, iPad Air and Andriod system with Bluetooth-compatible 4.Compatible Phone: iPhone 6/6 Plus/6s/6s Plus/5/5S/5C/4/4s/4c, Samsung Galaxy Note 2 3 4 5,Galaxy S6,S6 edge+ 5.Bluetooth-compatible Version: Bluetooth-compatible 4.0 Low Energy 6.Working Distance: about 75 Feet (without barrier) 7.Suitable for: Wallet, Car, Kid, Pets, Bags, Suitcase or other belongs 8.Battery: CR2032 Lithium Coin Battery (Not included) 9.Standby Time: 6 month 10.Connects up to 10 iTag unit 11.App Name: iTracing (Free of charge) 12.App language: English/Chinese/French/Spanish How to use: download an App iTracing (Free of charge),open yourBluetooth-compatibleand connect to the tracker,then you can use it. Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand, Thank you Package Content: 1 x Bluetooth-compatible Tracer Pet Dog Child Kid GPS Locator Tag Alarm Wallet Key (Lithium Coin Battery Not included) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.