My favorite technological device is my subwoofer system, which is used to listen to music, high or low, where you can listen to the radio or the songs that you decide to listen to on your cell phone, connecting them by Bluetooth or connecting them with an auxiliary cable.
I have it about four years ago and I use it all the time, when I order the house, when I study, even when I just want to rest and listen to relaxing music, it is for all kinds of situations. It is my favorite device, because I really like to listen to music, all kinds of music, and if I did not have it, it would be very sad because without it the days would be very boring, especially when things are done, also when I am alone and listen to music. I feel more accompanied, that's why I like it so much.