One of the challenges of our dear customers is that the type of device is suitable for our business, for this question 3 types of parameters are approved: 1- Number of personnel 2- Type of business (workshop or office...) 3- The output of the device (flash, network cable, Wi-Fi), for example, for the type of workshop businesses and industrial businesses where fingerprints are worn and it is not possible to use a fingerprint device, and they usually use face devices.