[Compatibility]: Support Windows7, 8 , Including Hello [Fast Reading Speed]: Fingerprint Reading Speed less than 0.45 Seconds, Low Error Fingerprint Rate: Up To 0.0001%, Low Fingerprint Rejection Rate: Up To 0.0001% [Simple Fingerprint Recognition] In the process of fingerprint identification, after the newly extracted fingerprint characteristic value is recognized successfully, the characteristic value is fused into the fingerprint database, so that users can use it more and more easily. [Wide Applications]: It Can Be Used For Fingerprint Access Control Machines, Fingerprint Attendance Machines, Fingerprint Lockers, Fingerprint Car One-Key Start, Fingerprint Locks, Fingerprint , Fingerprint Pos Terminals, Smart Control Devices And Other colour: Black Material: ABS + metal Package Contents: 5 x fingerprint reader 5 x CD disc 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.