R65D is a portable 125Khz contactless smart card (ID card) small read-only card reader that can be directly connected to the Android smart system platform through the Type-c interface. It can be plugged in and out at (plug and play) without an external power supply. The exquisite and compact design is not only simple and convenient to use, but also stable, accurate and reliable in reading. This product can not only be used on the Android system platform of mobile phones/tablets, but also can be connected to computers (computers) through OTG conversion cables, and read smart card (IC card) serial number data in the computer's output software (such as Notepad/WORD/EXCEL and other ). It is widely used in conference check-in, home-school communication, recharge and charging, access control and other application fields. Working frequency band: 125Khz Supported protocols: TK4001, EM4100 and other ID cards Working temperature: -20-70 Working voltage: 5V Working current: 100mA Card reading distance: 0-30MM (front/back) 0-10MM (side reading) Card reading time: Less than 100mS Card reading speed: 0.2S Card reading interval: 0.5S Android (test : for , , , ) system: WinXP, Win7, Win10, etc. (need to be transferred via OTG cable) Others Status indicator: 2-color LED ("blue" power LED, "green" status indicator) Output format: default 10-bit decimal (4 bytes), support customized other output formats Colour:Black Material:ABS Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Package Contents: 1 * card reader Only the above package content, other products are not included. Note: Light reflection 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.