Advantages: We will ship a 12V 1A suitable DC adapter for free gift with the fingerprint time attendance machine to you,hope it will help you a little 1. Strictly follow the national security product standard.Suitable for the entrances and exits of office, factory, hotel, school, etc. 2. Adopting the Energy-saving fingerprint sensor and power management function, makes the product perfect. 3. Easy to learn, once enroll the fingerprint, you can share it on other Realand terminals. 4. 2.8 inch TFT screen. 5. USB Flash Drive Download + USB Communication. 6. Fingerprint + Password + ID Card. 7. The RIMS (Realand Information Management System)is improving unceasingly and the customers are free to the upgrade ones. If you need datasheet or you need any help, please feel free to email us at happylee626@gmail.com, we will do what we can to help you. Please do not take any negative action before contact us, thanks for your kindly understanding.