The product adopts standard USB communication mode, which is more than ten times the speed of traditional serial communication; adopts 32-bit DSP embedded CPU with excellent performance in the world; the attendance machine is equipped with 10000 cards and 150000 records, which meet the attendance needs of large and medium-sized enterprises; Chinese voice prompt function, which supports 24-hour uninterrupted work and timed shutdown; USB communication is free of installation driver, plug and play