alert

multimedia

multus media

sfx

efx

sound effect

soundfx

computer

element

user interface

ui

notification idea

notify

notifier

notice

indication

indicate

social media

social networking platform

website

web site

system

royalty free

announce

announcer

attention

internet

mobile phone app

smartphone application

mobile device

network

online

fail

error

err

disconnect

bad event

warn

wrong

trouble

problem

fail attempt

access deny

deny