High-speed communication: using standard USB communication, the speed is more than ten times that of traditional serial communication, and play, no need to install drivers High-efficiency processor: using internationally superior 32-bit DSP embedded CPU to ensure efficient operation Large-capacity storage: built-in 10,000 cards and 130,000 records, meeting the attendance needs of large and medium-sized enterprises All-weather work: support Chinese voice prompts, 24-hour uninterrupted work, and timed shutdown Backup battery: optional power outage card swiping function, can continue to work for 3-4 hours during power outages