Shop name:Chong Qing Shuo Yue Ke Ji You Xian Gong Si Card Reader / Card Reader Features:-Small size, ergonomic, easy to carry, and convenient for daily use. Read (English voice) and write button design, the operation is more simple and convenient. Automatic frequency detection. Built-in LED light and buzzer indicator. Receiver's built-in antenna (internal HF / LF antenna). Can clone and copy read / write paper and remote control. Induction distance:2- 10(cm) Power: 2 x AAA batteries (not included) Working frequency: 13.56mhz 125khz Suitable for ID card, highway, patrol, attendance, access control system, business card, bus, etc. This machine supports ID:125Khz, 250Khz, 375Khz, 500Khz, IC: 13.56MHZ colour: white Material: ABS Size: 107x45x20mm Package Contents: 1 x Card Reader Only the above package content, other products are not included. Note: Light 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.