security guard K-2000: Technical Parameter RFID Non-contact RFid 13.56M Capacity 12000 pieces records Induction time <0.1s Affair 20pcs Baud Rate 115200BPSLanguage Support Simplified Chinese character/ traditional Chinese character/EnglishPower Supply 3.6V lithium -ion battery Standard Accessory Lithium-ion Battery Cable Holster Charger Frame Specification Housing Metal luxury case Dimension 125*40*25mm Weight 132g Environment Temperature -40-70Ambient Humidity 30%-90%Waterproof & Anti-shake IP67 level