Its a device that lets you send attacks to your own Bluetooth or WiFi. Thought Bluetooth you can't do much but crash a phone or get hashes. But when you attack your wifi you can take make it kick everyone off and then you can copy the name of your wifi and make a fake wifi connection with your wifi's name then when your brother connects to it a Google pop up will appear asking him to put his email and password once he fills it out the info will be saved in a pace where you can you can see it by going into a specific page. The page will vary on what firmware you use. You can use many firmwares on the device and you can upgrade it with a better antenna for a wider range.(the device will not come with the antenna on the picture) Message me for more info