I will give you a quick rundown on what you have and what you can do
*** NExT – NTAG216 13.56MHz NFC Type 2 ISO14443A RFID**
*** NExT – T5577 125kHz Chip Emulator**
The NExT, is a 2in1 High Frequency & Low Frequency chips in it
The High frequency, you can use to access compatible readers, doors etc plus unlock your computer with the included KBR1 Wedge Keyboard Reader.
Also store your chosen data eg.
The Low frequency Chip which is an awesome little chip that can emulate a variety of different chips, and from factory it will be able to operate your included xEM Access Controller
*** Spark 2 – 13.56MHz NFC Type 4 ISO14443A RFID**
https://www.vivokey.com/
*** Red xLED HF – 13.56MHz Field Detector Implant**
Blinky light that will energise when coupled with an HF reader, like you Phone, the KBR1 Wedge Keyboard Reader etc
*** xEM Access Controller**
Check out the projects section
*** KBR1 Wedge Keyboard Reader**
Plug and play, unlock your laptop