Aliexpress
Click here… to search for Huawei Honor xSport Pro Earphones AM66-L on 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 (75.67 USD): BGa0b145
Coupon (84.99 USD): 13f142
(CouponsFromChina.com tip: just apply this code 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): AFfbG10, BGHOXP, EARSP11, bGhOnEy10, BGHUA022, 7d18f7, BGSS10%SW, Email5, BGELIG0920, BG11SHOP, BG11PP7, BG4BW25, BGLOAC1
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
Check out price history chart (for all/most countries) for Huawei Honor xSport Pro Earphones AM66-L.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).