Communication interface: UART&USB (UVC/) Face algorithm: binocular 3D liveness detection and deep learning visible light face recognition algorithm Recognition accuracy: 98.85% Number of : 1000 features False recognition rate: Less than 0.0001% (one in a million) FAR./FRR.: Less than 1% Recognition distance: 0.3-1.2m, 0.6m best (face) Recognition height: 1.35-2.15m/ 20 inclination Recognition angle: left and right, up and down -20Support multi-angle face entry, expand recognition range Visual intercom: Support USB mission of audio and video (UVC/) reserved function Power supply requirements:DC5V-12V 1A Operating temperature:-20-+60 Storage temperature:-30-+70 Environmental humidity:10%-93% non-condensing Speaker/mark:Extensible support Applicable scenarios:Smart home, security monitoring, smart door locks, mobile vending machines and other fields Color: black Material: ABS Package Contents: 1 x AI Face Recognition Module 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.