What is WiFI Deauther?
Deauther exploits a vulnerability in the 2.4GHz WiFi protocol. It's about disconnecting devices from the network. (This is not classified as a WiFi Jammer)
Using Deauther is simple: you just scan nearby networks, select a "victim" or several "victims" you want to throw away, and then hit the Deauth button!
Video presentation by Maltronics:
Additional Features:
Beacon attack - Allows you to spam networks, these networks do not exist, and no one can connect to them. The network name list is configurable.
It can be used by shopping malls, airports, hotels, etc. to track customers
You can read a good article about it here .
Official manufacturer's documentation: LINK