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 phonestablets, 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 NotepadWORDEXCEL 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: 125KhzSupported protocols: TK4001, EM4100 and other ID cardsWorking temperature: -20-70Working voltage: 5VWorking current: 100mACard reading distance:0-30MM (frontback)0-10MM (side reading)Card reading time: Less than 100mSCard reading speed: 0.2SCard reading interval: 0.5SAndroid (test : for , , , )system: WinXP, Win7, Win10, etc. (need to be transferred via OTG cable)OthersStatus indicator: 2-color LED ("blue" power LED, "green" status indicator)Output format: default 10-bit decimal (4 bytes), support customized other output formatsColour:BlackMaterial:ABSTips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect UsePackage Contents:1 * card readerOnly 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.