Display: about 2.4 inches Identification: fingerprint/ID card/password Language: Simplified Chinese, Traditional Chinese, English, Spanish, Portuguese Secondary development: not supported Voice: real person voice reminder Button: support Recognition speed: 1 second/time Error rate: 0.0001% Communication : USB Data download: U disk U disk format: FAT32 capacity: Manager/Employee: 10/1000 Fingerprints: 1000 Password: 1000 ID card: 1000 (excluding ID card) Storage capacity: 100000 Sealing: IP54 Ambient light: 1000LUX Product size: 10.6 x 10.6 x 3.4 cm/4.2 x 4.2 x 1.3 inches Product weight: 158 g / 5.6 oz Colour:Black Material:abs Package Contents: 1 x Attendance machine 1 x Bag screw 2 x Cable arrangement Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. [More functions]: Need to connect to the access control system. Support alarm and doorbell functions. Suitable for offices, factories, schools, hospitals. [Easy to operate]: Through complex algorithms, the software is directly implanted into the fingerprint access control machine, avoiding the pain of using complex attendance software. The operation process is simple. Detailed Excel reports can be exported directly via USB flash drive. [Quick Attendance]: 1 second/time recognition speed, fast and sensitive recognition. Supports 1,000 fingerprints, 1,000 passwords, and 100,000 pieces of data storage. There are real-person voice reminders. Supported system languages - English/Chinese (Simplified, Traditional)/Portuguese/Spanish. [3 recognition modes]: Support fingerprint/ID card/password recognition. (ID card not included) High-precision optical total reflection fingerprint , anti-scratch, automatic update of recognition algorithm, no deviation in recognition.