Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (55.24 USD): BGAUDIO
Coupon (55.24 USD): BG9ba0e8
(CouponsFromChina.com tip: this code has to be applied in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGBuscape01, BG13d6fe, BGBRPL2, BGHOTSHOP15, BG53e9c8, BG5fd2ad, BGAlerabatKL, BGd173b4, BGAudioVideo
(probably won’t work, but you can try them out)
Price history and price alert
Price history (for all/most countries) for 1MORE ComfoBuds 2 Bluetooth 5.2 Headphones is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).