When the computer is connected, a disk is displayed with software on it(Do not put the battery in when connecting the computer, wait for the disk to respond, do not press ok)<br> This product is not suitable for bank cards! !<br> Cannot write electronic label stickers and electronic label cards(NTAG 213)<br> If the device cannot be connected, please do not put the battery when connecting to the computer<br> Working with 4 x AAA battery, standard handset, easy to carry. (not included)<br> Comes decoding, direct preparation of various types of smart card access door.<br> How to read and write normal RFID cards?<br> 1. Press the "on/off " button.<br> 2. Put the cards on the back of the copier. The copier will be show the "Waring" page. Press "ok"<br> 3. Put the cards on the back side of the copier and press "scan"<br> 4. The copier will scan and show the card number.<br> Color:Creamy white<br> Material: Plastic<br> Due to different batches, there may be differences in product appearance, color, and printed text, which will not affect the use.<br> Accessories have random colors and appearances, No specifications accepted<br> Specifications: 5X T5577 Keychain/Card<br> Package contents:<br> 1 x Smart Card Reader Kit<br> Only the above package content, other products are not included.<br> 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.