You can create price alert here, copy coupons and view price history. Let’s see what best price is ATM.
Signal to Noise Ratio: 75dB, Weight: 556g(19.6 oz), Brand: Boya, Dimensions: 249.6×114.9×118.8mm(9.9×4.5×4.7″), Maximum SPL: 110dB, Mic Gain: 38dB, Model: BY-PM300, Bit Depth: 16bit/24bit, Sensitivity: -45dB(0dB=1V/Pa /1kHz 1Pa), Polar pattern: Cardioid, Frequency Response: 20-20000Hz, Audio Output Connector: 3.5mm headphone output / Type-C, Power Consumption: 5V/120mA, Sample Rate: 48kHz
Aliexpress
There’re some similar (or not) items on Aliexpress
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
BOYA BY-PM300 Professional USB Microphone for PC Computer Desktop Streaming Live Singing Recording Conference Pointing Radio | $57.16 | – |
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. There is one great coupon!
Link: Banggood product page
1. ($67.61): BGSaleFeb8
coupon code has to be applied in shop’s cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG11f04e, BGBuscape01, BGc5874d, BGBRPL2, BGHOTSHOP15, BG53e9c8, BGAlerabatKL, BGd173b4, BGAUDIO, BG9ba0e8, BG1b5830
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Price history (for all/most countries) for BOYA BY-PM300 Professional Desktop USB Microphone is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).