Usually we use telephone, computer, MP3 player and see TV.
If you see TV, you shoulder strain.
If you use computer, you eye strain.
If you use MP3 player, you hearing loss.
If you use telephone, you have a skin infection.
If you see TV, you shoulder strain.
If you use computer, you eye strain.
If you use MP3 player, you hearing loss.
If you use telephone, you have a skin infection.