I have tested many of the products and asked my friends and review on what products they use while they study.
The products and things which i am going to suggest you is not top-notch but it is budget friendly and any one can buy these products without any hesitation.
However keep in mind some products may be in high price point but they are one time investment and you can use them for years.
My goal in this page is to help you by recommending the products and clearing all the doubt about it.
So here are some things which i use.