Aliexpress
Click here… to search for Haylou GT1 XR Earbuds on 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 (19.99 USD): BG010662
Coupon (22.99 USD): BG362b99
Coupon (31.41 USD): BGAlerabatKL
(CouponsFromChina.com tip: put item in your cart and apply coupon code there 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): BGXR011, BGSS10%SW, BGXR909, BGXR909ES, BGELIG0920, BG28XR, BGESXR, BG11SHOP, BGGT1XR22, BG11XR, HAYLOU15, BGXRZD, Abdul1717, BGRUXR2, BGLOAC1, BGXRES2, 13f142, BG25901d, BG3459a6, BGcc60be, BG0ab105, BGa0b145, BGGT1CN, BGBuscape01, BGBRPL2, BGHOTSHOP15, BG53e9c8
(there’s a little possibility that old coupon will work)
Price history and price alert
Here is price history (for all/most countries) for Haylou GT1 XR Earbuds.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).