Model: F5D3 colors for your choice: White、 Orange、 GreenTracker size: Approx 36 x 2mm(W X T)A key finding things.The Internet search.The location information.Ultra-low power consumption.Multitasking management.For iOS system: For iPhone 4s /For iPod Touch 5 Gen/For New iPad 3 and so on.For Android system: For Nexus 4/5、 For Samsung Galaxy Note 2/Note 3/S3/S4、 For Huawei P7、 Support the Bluetooth 4.0 and Android system version 4.3 and above.Warning: Chocking Hazard-small parts、 Not for children under 3 years!Package Content: 1 x Smart Tracker;2 x CR2032 Battery(1 inside and 1 for backup); 1 x 3M VHB; 1 x Strap; 1 x Quikc guide charging cableNote: Due to the difference between different monitors、 the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. Thank you!