Brand N/A Model 39369 Color Black Quantity 1 Network GSM Band 850/900/1800/1900Mhz GSM/GPRS Module GSM PC Interface Supported USB GPS System Features N/A Operation Temperature 20'C~+55'C Storage Temperature 40'C~85'C Humidity 5%--95% Altitude Limit N/A Velocity Limit N/A Memory 0 GB Memory Card Type N/A Max Extended Capacity N/A Power Supply USB 5V Battery Type 3.7V 500mAh Battery Standby 168 Hour Other Features Real-time location tracking track playback; support SMS and GSM platform tracking Dial the cell phone number in the device get through and hang up automatically returns current position and a map link as well. can set 9 numbers for SOS emergency call Small cubageeasy to hide Supports voice calls Standby time:7 days Certification N/A Keywords GSM Tracker Packing List 1 x GSM position tracker 1 x USB charging cable (75cm) 1 x Earphone (90cm) 1 x English / Chinese user manual User Manual: http://m5.img.dxcdn.com/CDDriver/CD/sku.250295.docx