The gadget (it's the "gadget") is a portable device with a set of features , without which no self-respecting hipster imagines the life. The stress in the word "gadget" is put on "a". The gadget can be, for example, an mp3 player, a mobile phone, a tablet or a "smart clock". Gadgets already know almost everything and are close to the complete enslavement of humanity, which can hardly come off the screens of their gadgets and talk with their loved ones with great difficulty.
The gadget is in the list: Slang