The BM800 is arguably one of the cheapest mics and the most common in the world, especially in Greater Asia however you should note that the quality differs WILDLY depending on which store it’s from.

Some tips from me speaking from experience.

• it’s treble heavy so boost up the bass;
• there’s 2 versions, a 10mm electret and a 16mm condenser. The former is good when connected to an audio interface with an 3.5mm mic jack of cheap live audio interfaces like the v8, the latter supports 48v phantom power.
• NEVER buy it in a bundle and set, especially on Lazada and Shopee you’re more likely to get the arguably worse 10mm version;
• talk a bit louder than usual, that may help until you get a better mic