Resolution: 320*240 Supported Languages: Simplified Chinese, Chinese, English, Spanish, Portuguese, Vietnamese, Korean, Japanese Secondary development: Not supported Voice: Voice alert Button: Support Attendance speed: 1 sec/time Misjudgment rate: 0.0001% Drop resistance: Withstand 1.2m free fall 5 Waterproof and dustproof: Comply with IP54 standard Working temperature range: 0-45 Storage temperature range: 0-50 light intensity: 1000LUX net weight: 245g Weight with packaging and accessories: 440g Mainframe size (L x W x H mm): 168mm x 116mm x 33mm Power supply: 5V 1A Communication interface: Mini-USB, USB Data download: U disk, USB cable U disk support : FAT32 color:As shown :ABS Package Contents: 1 set x Time Attendance Machine 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.