Product Specifications: Brand: Rui Feng Wise Model: RF-V8 GSM Band: quad-band network, universal GPS positioning accuracy: 10-15 meters (open sky) Standby time: 12 days vibration alarm: sound sensor alarm: There are built-in battery : There is (a card that is used) Low battery alarm: Alarm displaced: There Remote Pickup: electronic fence: Specifications not have the time to market of origin in China in 2014 due to vendor product packaging inventory grouping different batches, specific packing list may vary, please prevail in kind!