Remove grammar mistakes: Once they are used to with the current product, it is hard to persuade them to switch to the new one because they have to learn how to use the new device.
The new product is a new one.
Correct: The new product is a new one.
Correct: The new product is a new one.
Correct: The new product is a new one.
Correct: The new product is a new one.
Correct: The new product is a new one.
Correct: The new product is a new one.
Correct: The new product is a new one.
Correct: The new product is a new one.
Correct: The
The new product is a new one.
Correct: The new product is a new one.
Correct: The new product is a new one.
Correct: The new product is a new one.
Correct: The new product is a new one.
Correct: The new product is a new one.
Correct: The new product is a new one.
Correct: The new product is a new one.
Correct: The new product is a new one.
Correct: The