CUID Copy Card: Frequency: 13.56MHZ Erase: Repeatedly erase Description: It can pass 90% of firewalls. If the UID card is successfully copied but the card is invalid, you can use this card to copy. It is recommended to buy this card for elevator cards RFID Smart Chip Reader: Our small and versatile device can clone and emulate a wide range of RFID tags and cards. With This Device, you can create copies of RFID tags and cards, which can be used to access secure areas or equipment that require RFID authentication. You can also emulate and stores different types(125KHZ/13.56MHZ) of RFID cards,Each channel can store 2. A total of 16 can be stored. This Device is a valuable tool for anyone working with RFID technology, whether you're an engineer, security professional, or just a curious hobbyist. And thanks to its compact and portable design, you can take it with you wherever you go! Due to different batches, there may be differences in product appearance, color, and printed text, which will not affect the use. Colour: Black+Transparent Material:plastic Package Contents: 1 x RFID Reader 2 x Adapter(Random color and appearance, Not accepting designation) 1 x USB Cable (Random color, Not accepting designation) 5 x Card 5 x Keychain (random color and appearance, Not accepting designation) 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.