Resolution: 1200DPI, It is powered by 2 AAA batteries (included).
Go down and check coupons out. Remember to check price history if it is available. Let’s see what best price is ATM.
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 Europe 
. Uhm… There’s no price history (in my database) for this product right now. You can get coupon down below.
Link: Banggood product page
1. ($22.61): BGraton
coupon code has to be applied in shop’s cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): ca350e, 502C6B, TTxBG10, e18b44, BGRatones, BG3CSUM, bgssaff9, AFfbG10, BGjdsk52, BG11mouse05, 0e7f33, BGSS10%SW, BGAUXMM, BGAFF10OFF, BGCuponation10, 13f142, BGHONEY2110, BGafec62
(these coupons are old, so probably won’t work)
Other warehouses/versions
This item is available in 2 another warehouse/versions!
1. Hong Kong – Xiaomi Bluetooth 4.0 Mouse Silver ($-3)
2. Hong Kong – Xiaomi Bluetooth 4.0 Mouse Gray ($-3)
Price history and price alert
It’s a new item in our database, so I can’t create price history chart. We have saved this price in database: $16.99.
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)).