You can get Xiaomi Wireless Mouse 2 Lite for $11.99 using coupon code (in Banggood). Price history, coupons and price alert are available on this page. Let’s see what best price is ATM.
Latest price update (UTC time):
1000DPI
Banggood ($11.99)
Banggood warehouse is located in China. I couldn’t find any coupon for this product on latest product update. The question is – is it a good price? Cool, average is $12.80, so current price is lower!
Link: Banggood product page
Price: $11.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG589b2e, BG16e219, BGe4fbe7, BG2dd84b, BGdc258b
(these codes were not working in latest coupon update, but you can check them out anyway)
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Do you need price history chart (for all/most countries) for Xiaomi Wireless Mouse 2 Lite? There we go.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).