Adopting the unique fingerprint features to prevent unauthorized access to your PC and make your PC safer. 360° touch all angle recognition, easier and more accurate to log in Windows. Standard USB interface, supporting Win 10. Designed for Window 10, fingerprint password protect your personal data without the need to remember complex password. If windows don't recognize the device, please download the driver of this device. Every family member can enjoy fingerprint recognition and encryption, it enables setup up to 10 fingerprint IDs. Colour:black Material:Plastic + Metal Size:22 x 18.9 x 9mm Package Contents: 3 x USB Fingerprint Reader 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.