Utilizes a professionally matched antenna design, achieving a card swipe distance superior to most other products on the market. Supports multiple NFC/RFID functions, including compatibility with for Classic, Ultralight, DESFire, Plus, 21x, EM410x, and T5577 card types. Simultaneously emulates up to 16 cards (8 card slots, each supporting 1 IC + 1 ID). Powered by the high-performance NRF52840 MCU (ARM - architecture, 1MB Flash + 256KB RAM). Supports Bluetooth 5.0 and Type-C connectivity, with a 90mAh battery life of up to 6 months (8 times daily use) and additional functionalities including dual control buttons for card slot switching, device , UID cloning, and battery level display. The device features a reset function that allows for quick disconnection when connected via Bluetooth or Type-C. It also supports firmware functionalities such as sniffing, MFKEY32V2, , and more. The color of the device is black, and it is made of ABS material. Color: Black Material: ABS Package Contents: 1 set of Chameleon 3.0 Smart Card Emulator 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.