Before use, download an App iTracing (Free of charge),open your bluetooth and connect to the tracker.
Andriod system with bluetooth 4.0 Smartphone (Andriod 4.3 version and up-grade version). 4.0 smartphone (Andriod 4.3 version and up-grade version)
Long press the button of the tracker for around 3 seconds to turn on/off; use a coin as a key to open the battery cover (battery type: CR2032)
Suitable for: Wallet, Car, Kid, Pets, Bags, Suitcase or other belongs
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 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+