You can create price alert here, copy coupons and view price history. Let’s see what best price is ATM.
14 Kinds of Languages, 900mAh
Aliexpress
I could not find it on Aliexpress. Click here to search by yourself.
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. As you can see I didn’t find any active coupon for this product right now…
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): 8c924b, d52417, 6d0f06, 935bc1, ba388e, TTxBG10, 626b9c, 97c2b3, BGMY318, AFfbG10, 502C6B, BGMY31
(there’s a little possibility that old coupon will work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – MY001CN AI Translator Xiaomi Youpin Silver ($-3)
Price history and price alert
Here is price history (for all/most countries) for MY001CN AI Translator Xiaomi Youpin Dark Gray.
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)).