Aliexpress
There’re some similar items on Aliexpress in my database. There may be some other items though.
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. You can get coupon down below.
Link: Banggood product page
Coupon (245.99 USD): BGAudio9
(CouponsFromChina.com tip: you should apply the coupon 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): BGAUDIO, BGeb649d, BG1b5830, BGSaleFeb8, BGSaleAD, BGAudio3, BG2c1cf9, BGAUGUST8
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Check out price history chart (for all/most countries) for Xiaomi Buds 4 Pro Bluetooth 5.3 Earphones.
Price records source(s): Banggood
Click on image to enlarge.
You can set price alert (for Banggood).