Flipper Zero is a portable multi-tool for pentesters and geeks in a toy-like body. It loves hacking digital stuff, such as radio protocols, access control systems, hardware and more. It’s fully open-source and customizable, so you can extend it in whatever way you like.
Features: Sub 1-ghz transceiver, 125kHz RFID, 13.56 MHz NFC, Bluetooth, Infrared Transceiver, 1-Wire iButton, expansion headers.
You can read more about the device at https://flipperzero.one/