Buying guide for AULA F75 75% Wireless Mechanical Keyboard

Hi guys, I'm a newbie here and I want to purchase a good MK. I went through some posts and found out that this is good value for money. I have a few questions: how can we tell if it's a red switch or blue switch keyboard? Also, which is the best website to buy from?

https://preview.redd.it/h37uuksulace1.png?width=695&format=png&auto=webp&s=8c60695a0271000e52449bc7a4ea419995aecbd2