Quick start guide:Step 1, please charging the battery. The red light will be off after full charging.Step 2, Please kindly prepare a Sim Card from your local market.Step 3, After installing the SIM card, Then you can track by SMS/APP/Web Platform.The sim card must support GSMPlease activate the SMS/GPRS/Calling function of the SIM cardPlease test it outside, or put it in the window to get quick GPS positioning.Please kindly set up the APN if you can not find the location of device in the APP or Web Platform.Colour: BlackMaterial: PlasticPackage Contents:1 * GPS TrackerOnly the above package content, other products are not included.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.