Description :  RF-V8 Mini Quad Band High Efficiency Anti-theft Positioning GSM GPS GPRS Tracker Alarm with Lanyard  This RF-V8 GPS tracker & anti-theft alarm can track in all domains as your will. It has burglar-proof function and remote listening function. With noise sense alert & low battery charge alert & SIM- changing alert、 real-time monitoring the safety of car & property、 guard property from violation come ture.   Features :  Super mini RF-V8 GPS tracker & anti-theft alarm. Tracking via website \/ IOS APP \/ Android APP \/ We Chat \/ SMS. Trace replay. Push button SOS alarm. Geo-fence. Vibrating sensor burglar alarm with 4 levels of sebsitivity. Sound sensor burglar alarm. Remote listening function. With low battery charge alert. With SIM-changing alert.                         Specification :                Model:         RF-V8               GSM network:         850\/900\/1800\/1900MHz               GPRS standard:          Class 12、 TCP\/IP               GPS locating time:         30sec with cold boot(under the open sky)                         29sec with warm boot(under the open sky)                         5sec with hot boot (under the open sky)               GPS Positioning accuracy:         10-15m(under the open sky)               Working temperature:         -20\u2103 to +70\u2103               Working humidity:          5% - 95% RH               Host size:         40(length) x 34(width) x 15(height)mm               Host weight:         24g               Packing size:         114 x 47 x 155mm、 230g        Package includeds :  1 x RF-V8 Anti-theft Positioning & Alarm 1 x USB Cable 1 x User Manual 1 x Car Charger 1 x Power Cable   Details pictures :