Please note: This upgrade focuses on performance improvements. To distinguish it from the old version, it is named V3.0, not firmware V3.0 updates. (It may be updated later, so stay tuned) Upgrade to Chameleon Ultra third generation, restart + automatic polling function! Optimize button restart, the optimized version does less harm to the battery Equipped with an intelligent charge and discharge management system and advanced lithium battery protection technology, it effectively slows down battery capacity degradation, ensures safe and efficient operation, and provides comprehensive protection for long-lasting device battery life. Function Introduction: 8 card slots, capable of simultaneously storing and emulating 8 IC cards and 8 ID cards, a total of 16 cards. It offers comprehensive read and write capabilities and supports various RFID cards. A reset function is added; pressing the A+B keys allows for quick reset and restart, quick disconnection during Bluetooth connection, and quick disconnection or entry into DFU mode when connected to a computer via Type-C. 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 store different types (125KHZ/13.56MHZ) of RFID cards. Precisely matches the central frequency of IC and ID cards, redefining the resonant capacitors for excellent actual card reading performance. 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: Acrylic Package Contents: 1*RFID Reader 1*UID Keychain 2*Adapter(Random color and appearance) 1*USB Cable (Random color) 1*Lanyard 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.