Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (21.31 USD): BG00c906
Coupon (21.31 USD): BG8OFFCOUPON
(CouponsFromChina.com tip: 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
Old coupons (from the oldest to the newest): BGAADSCSD, bGhOnEy10, BG5F61B67, BgcLuBofErtA10, BGAFF10OFF, BGCuponation10, 13f142, BGHONEY2110, BG23999d, BGe98ce5, BANGGOODSD, 6GSGIT, 00c906, ADMITAD2212, 2022ACTIESNL, Terence, Tabby20, 2203ActiesNL, BG1efeb0, 8Couponsde, MVC8SPRING, 8BGwbg2204, tRaDetRaCKeR, 8wEbgaInS5, pROMo8cuPoN, hoNEYbGdeAlS, BGJUNEGSG9, BG8ReviTrage, Cuponation9, BGcoupon8off, BGGutscheine
(probably won’t work, but you can try them out)
Price history and price alert
Here is price history (for all/most countries) for Havit RGB Headphones Stand with 3.5mm AUX 2 USB Ports.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).