Detailed Product Description mobile tracker,best tracker,to tracker1:Edit on menu (GPRS)Command 0x0301From Server to tracker unit@@ + L + ID + ... Menu (SMS)Command:301Following SMS is send From server to tracker unit to set menuW******,301,dataData:MenuItem1 + + MenuItem2 + + ... add(SMS)command:302Following SMS is send from server to tracker unit to add menu:W******,302,dataData:MenuItem1 + + MenuItem2 ...