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Q2:The frequency of use of the headphones or earphones?
Every days
Several times a week
Never
Q3:Price you use headphones
under 50
50-100
100-150
150-200
over 200
Q4:Will you do regular maintenance of your headphones and earphones?
Yes
No
Q5:How often do you replace your headphones and earphone?
several monthes
about 1 year
over 2 years
Q6:The reason why you discard your headphones or earphones?
A headphone has malfunction
Two headphones have malfunction
Not fashion
Pets biting