Tserriednich with a line of smartphone at his disposal
Tablets
A tablet is a mobile PC, typically with a mobile operating system and LCD touchscreen display processing circuitry, and a rechargeable battery in a single thin, flat package.
Along with smartphones, tablets are used by several characters throughout the series.
Computers have large variations, ranging from old models with cumbersome design to modern models with flat screen and compact CPU. laptops are also available everywhere in the world.
Killua uses an old model computer
Milluki uses the latest computer model at the time in which he wished to Alluka to get
A tape deck, or tape recorder, is a device used alongside magnetic tapes to record, reproduce, or playback audio. The most noteworthy one in-universe is Gon's, who uses it to listen to his father's message.[3]
In Chapter 348, on the back of Tserriednich's smartphone it is possible to see a stylized apple with a malevolent expression. This is a reference to the real-life company, Apple Inc., founded by Steve Jobs.