This machine with 2.8 inches LCD screen adopts exclusive face image+ V4.0 algorithm, bound with "multiple light face recognition technology" and high performance DSP processor. Its sensitivity and efficiency will help you to eliminate the worry about handling with the attendance records for employees. This machine fits for staff attendance in offices, factories, hotels, schools, etc. Features: Stable performance, low energy consumption. Support massive USB storage device data import/export. Support recognition modes: face recognition , fingerprint recognition, password recognition . Easy to use, TFT clear touch screen, local operation supported, real-time display and vivid sound provided. Human-harmless non-visible auxiliary light technologies, good performance regardless of day or night, 7*24 continuous working. Excellent outdoor workable face recognition product on earth, superb adaptability for changing illumination, multiple recognition against race, complexion, gender, facial expression, beard and hair style difference. Specifications: Material: ABS+PC Plug: 100-240V US/UK/ EU/AU (Optional) Power: DC5V Recognition Mode: 1:N, 1:1 Recognition Method: Face; fingerprint; Password Face Capacity: 300 Fingerprint Capacity: 3000 Record Capacity: 100,000 Facial recognition speed: ≤ 1s Fingerprint recognition speed: 0.7s FAR:≤0.0001% FRR:≤0.01% Valid Distance: 30-80 cm Communication: USB2.0/TCPIP Driver-free and USB HOST Memory Storage: 512MB USB Data Import and Export: Support LCD: 2.8 HVGA Display Screen Keyboard: 4 * 4 keyboard Report output: EXCEL can be exported directly from U disk Buzz: Support Human Sensor: Support Working temperature: 0-60 ℃ Working humidity: 20%-80% Size: 19.0 *14.0 *9.2cm/7.5*5.5*3.6in Package Weight: 732g/25.8oz Package List: 1 * Fingerprint Attendance Machine (Batteris Not Included) 1 * Package of Screws 1 * Power Adapter 1 * User Manual