Crickets have hind legs modified for jumping and two stiff and membranous hind wings used in flying. Male crickets typically make melodic chirping sounds by rubbing a scraper situated on one forewing along a string of approximately 50 to 250 teeth.
1 Additional Answer
Crickets can fly, but they seldom do, and it's definitely not much of a distance. They have wings that are made as thin as paper, so when they do fly, they don't go very far.