1. Bidirectional anti lost<br />2. Bidirectional search<br />3. Support Chinese， English，French， and Spanish 4 languages.You could setup at your phone setting.<br /><br />Range of application:<br />iOS system:  4s /  5/  5c/  5s/  6<br />iPad 3/iPad 4/ iPad mini/ iPad mini2/ iPad AirTouch 5， and so on.<br />Android system: Galaxy Note 2/Note 3/S3/S4/S5<br />GoogleNexus 4/Nexus 5<br />Sony L36h(Xperia Z)/L39H(Xperia Z1)/XL39H(Xperia Z Ultra)<br />HTC One/ One (M8)/HTC One<br />HTC One/ One (M8)/HTC One<br /> G2/G3<br />Support the Bluetooth 4.0 and Android system version 4.3 and above.<br />Remind: Buzzer， flash<br />Alarm distance: 15~30 meters<br />Battery: CR2032<br />Color:Black/White/Pink/Blue/Yellow<br />Size:30mm x 10mm<br /><br />Package Included:<br />1 x Bluetooth Tracking Tag (Included a CR2032 battery)<br />1 x English Manual<br />