1.Sms & gprs tracking: capable of text message (sms) tracking & internet (gprs) tracking 2.A sos button for emergency help 3.Configure by mobile phone with text commands or via usb cable on computer or directly on the watch screen 4.One free software for configuration and tracking on home computer 5.Gsm base station id helps locate in case of the unavailable gps. 6.Geo-fence for parking safety: leaving out the defined circle will cause an alert message. 7.Speeding alert for parents disciplining the teenage driverí»s behavior. 8.Track at most 5 targets on the watch screen by direction & distance. 9.Two way communication and text message each other. 10.Wire tap: listen in to the talk of carrier secretly---coming soon 11.Compass helps you find the way back in a strange place. 12.Store the waypoints if lose gsm coverage and re-send when it comes back. ---coming soon 13.Language optional between english & chinese. 14.Battery monitor for warning of a low battery. 15.Waypoints recording for history path replay on map of google earth. 16.Add photo tags to waypoints with custom software. 17.Full memory alert for waypoints recording. 18.Stop watch, calorie calculation, ring volume adjustability etc. Product size 59*38*18mm Weight 45g(including battery) Box size 17.5cm*12cm*8.5cm Weight 240g Carton size 53cm*38cm*47cm(for 40pcs) Weight 12kg