Mini Tracker Locator Elderly Children Anti-lost Device GPS Strong Magnetic Positioner Feature: 1.Material: Plastic 2.Suitable for the elderly and children. 3.Mini model is easy to carry. 4.Strong magnetic tracker with SOS alarm add extra safety. 5.We have excellent technicial support Any question or your using experience less than perfect please do contact us . Product description: Material: Plastic positioning accuracy: 500 Resolution: None Map function: None Battery life: 200 Antenna type: Built-in Alarm mode: SOS alarm Size: 4*2.2*1.5cm Memory: 200 Waterproof function: None Battery type: Polymer Battery External power supply form: Built-in Package List: 1 *Mini Tracker 1 *USB Cable User Manual Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.