1,Excellent rfid guard tour system 2,Waterproof &Durable 3,USB Communication 4,10 meters ... USB driver,high speed data download.4,Power:3.6V lithium battery,rechargeable5,Light and buzzer ... machines, Arcades, Care workers, Health visitors, Outpatient visiting... 3. Service Technicians, Health & safety, Tracking Electrical safety, Fire ... Asset tracking etc... Competitive rfid guard tour control system