How to buy head phone so let get started the first point is frequency response. you’ll see this back in many of headphone and the range given will be from 20 words 20 kilohertz and I would call them as a common headphone this is your find it on most of the Samsung so no what is good head phone according to me is which product frequency response from 16:30 to 24 kilohertz now what is the 16 May 16 is base the trouble producing capacity of a head phone so now what is the maximum range that companies are producing. it is around 5 or 33 kilohertz. should we go head phone in there too costly and I would suggest a big now why because this is just a marketing gimmick to get those extra marks from here pocket so because. you are listing frequency range is from 23rd to 23rd and 16 to 24 is basically what you call giving you fee of music.