Item Description: 100% Brand New and High Quality; Plug & Play , No driver and program for operation; Support Ipad , Android and windows; Size: 70mm x 20mm x6mm. Main Features: Support: EM4100 or compatible ID card/tags, don’t compatible HID card/tag; Work Frequency: 125Khz; Built-in transceiver antenna; Reading distance up to ~2-3cm (for ISO card size); Output format : 8 digit decimal; 10 digit decimal Output interface : USB keyboard emulation; Power by USB interface and no external power is needed; WinXP, Windows 7,Window 10, doing, Android - OTG, etc., in theory, as long as the computer or mobile phone support USB keyboard will be able to use this product. Operating Temperature: -10'C ~ +70'C; Store Temperature: -20'C ~ +80'C ; Plug and play , No driver is needed under Windows ,Android and Ipad ("Ipad Connection Kit" is needed); Android phone need USB OTG support (e.g. Samsung i9500 , i9103 etc..). Please note: For Ipad operation , "Ipad Connection Kit" is needed . It is not included with this RFID reader. Package included Micro 125KHz RFID Reader with USB keyboard interface x 1 pc RFID card x 2 pcs RFID keyfobs x 2 pcs