Features: Made of high quality ABS material and non-slip back design. USB interface, driver-free, just plug and play. Compatible for multiple systems, can connect computer and mobile phone. Built-in speaker controls buzzer and LED to indicate state of punching the clock. High reading speed increases the efficiency of punching the clock to a great extent. Non-contact card reading with fast speed, only need 0.2s. Specification:Condition: 100% Brand NewMaterial: ABS Color: WhiteType: Non-contact Card ReaderSupport Card Type: 125Khz/ID Card, 13.56Mhz/IC Card (Optional)Operating System: Windows98\XP32\XP64\2000\CE\7\ME\NT\LIUNX\Vista32\Vista64\AndroidSupport Agreement: 14443A agreementCard Reading Distance: 0~80mm Card Reading Time: <100MS Card Reading Speed: 0.2S Card Reading Interval: 0.5S Communication Interface: USB interfaceSize: 104 * 68 * 10mm/4.1 * 2.7 * 0.4inPower Supply: USB Weight: 60g/2.1ozWorking Temperature: - 20~ +85 Working Humidity: 5%~95%Working Voltage: 5VWorking Current: 100mAStatus Indicator Lamp: 2 colors(red is power supply LED, green is status indicator lamp)Package Size: 12.5 * 9 * 4cm/4.9 * 3.5 * 1.6inPackage List:1 * Access Card Reader.