Just check coupons out (with price alert and history). Let’s see what best price is ATM.
Working Temperature: 0℃~40℃, Shag Carpet, Tile Floor, Ceramic Tile, Marble Floor, Dust Box Capacity: 550ml, Water Tank Capacity: 550ml, Climb Capability: 20mm, Working Time: 60 – 130min, Noise (dB): 68dB, Power (W): 33, Floor Types: Carpet, Charging Time: 180 – 240min, Wood Floor, Suction (pa): 2100Pa
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in Hong Kong. I can’t find any active coupons for this product in Banggood.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGVMV2PR, BGAFF7OFF, bgshOOp10, BGHKV2P, BGHOMEAPP13, BGCZVMV2PR, BGHA5FF, PICODICOM, BGVM001, BGVM04, a8cfc9, aff7off, BGVIM07, BGSV2B7, BGV2BOT7, BG925b3c, BGSUV2, BGRB08VI, BGXMVM339, BGXMVM, BG13thplviomi, BGVI209, BGVMV2, BGVMV29, BGVM2X, bgchinafest, BGVMXM2, BGVM2RB, BGVM2H, BGXVM2, BGXVCRA, BGXVMB, BGVMV2R, bGpAnDacHeCk, BGV2RBD, BGVMCZ2, BGCZVM2, BGCZVR, BGPRVMC, BGTRCZV, BGHCLE15, BGVV2pDFY, BGHOMEA13, BGCZVM2PR, BGCZVMV2P, BGCZBFVMV2, BGCZVMPR2, BGCZVMCV2P, BGHKVMVPU, 7bcdf9, BGHKVFDV2, BGCZRVM2PC, BGHKVMVB2P, BGCZXGMV2PR, BGHU0337, BGCZSRV2P, BGCZVMPRU2, BGCZVMVP2, BGCZPRV2PU, BGHU0472, BG10OFFAFF, BGCZVMUP, BGCZDVM2P, BGwhielabel, BGCZFUV2P, BGCZVMU2, BG10OFFAFF1, BGCZMV2P, BGCZVMP2, BGCZTAV2P, BGCZPRVM2P, BGCZDEVB2, BGCZPRVP2, chollov2pro, BGCZRAUV2, BGCZVFD2P
(you can check these old coupons out, but these probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Xiaomi VIOMI V2 Pro Vacuum Cleaner [EU] ($-3)
Price history and price alert
Check out price history chart (for all/most countries) for VIOMI V2 Pro Robot Vacuum Cleaner.
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)).