LOPURS NEW GPS305 Mini Hidden Bicycle GPS Tracker, GPS/GSM GPRS Quad Real-time Google Map Tracker Built-in GSM,GPS antenna, compact, elegant appearance. Support GPS and LBS (Location based service) double tracking solutions. Support SMS/GPRS/Internet Network data transmission (GPRS / Internet instructions includes in CD in package) Support configure the settings remotely Set multiple functions of security, tracking, monitoring surveillance, emergency alarms and management in its entirety