Which invention is small and easy to carry?
Portable speaker
Which invention helps people listen to music wirelessly?
Bluetooth speaker
Which invention is the most efficient for watching videos?
Smart TV
Which invention helps people clean clothes automatically?
Washing machine
Which invention helps people send messages instantly?
Smartphone
Which invention was used to write letters in the past?
Typewriter
Which invention helps people stay cool without using their hands?
Electric fan
Which invention was used to light homes before electricity?
Oil lantern
Which invention transformed how people take photos?
Smartphone
Which invention replaced paper maps?
GPS or smartphone map
Which invention solved the problem of slow transportation?
Electric car