You all might be wondering after reading the title as How to test before buying an earphone.
Let me explain in detail. What do people generally do if they have a plan about buying a earphone?
They either choose to buy it ONLINE ( Flipkart, Amazon, Shopclues etc) or OFFLINE ( in shops or stores near them) .
If Online, then they first select their brand, select the site from where to buy, read all those different types of reviews written by different types of users and finally get into a conclusion of buying or not.
Actually it is not the only procedure. Many of them follow this and some out of those many complaint about fake product. you know why? Because of not choosing the right seller. When you purchase the product below it are different seller' s details.
Never directly book with defaultly selected seller, instead see all sellers in list and check their ratings, reviews and reputation, after then only you should buy the product online.
If offline in shops also the procedure of checking reputation matters and you must follow the same of checking the seller. If your brand is big then dont buy in any small shops.