Upgraded Version Chameleon V2.0,with Restart function, you can double-press two buttons to restart in case of battery failure. 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. 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. Color:Transparent Black Material:plastic Package Contents: 1 x RFID Reader 2 x Adapter (The color and appearance are random, the designation is not accepted, and the interface remains unchanged) 1 x USB Cable(The color is random, and the designation is not accepted) 1 x Lanyard 4 x UID Keychain(The color is random, and the designation is not accepted) 4 x CUID Card 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.