USB wired barcode scanner to capture 1D, 2D code on labels, paper, mobile phone or computer. High-efficiency recognization and high upload speed for improving your working efficiency. With buzzer for reminding you that the scanning successfully or not. Compatible with USB and UART interface. Superior reading performance utilizing advanced decoding algorithms size:4.65x2.75cm Material:PCB colour:Green + Black Package Contents: 1 x scanning module 1 x USB cable 1 x serial line (MX1.25x4Pin) Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.