Xiaomi Mijia 2C Robot Vacuum Cleaner (Banggood, Aliexpress: Battery Capacity: 3200mAh, APP Control: Yes, Voltage: 110-240V, Charging Time: about 4h, Suction Adjustment: 4mode, Battery Type: Li-ion battery, Power: 40W, Working Time: 110min, Self Recharging: Yes, Water Tank Capacity: 250ml, Suction: 2100Pa, Dust Box Capacity: 550ml, Brand: Xiaomi Mijia, Noise: 72dB, Climb Capability: 2cm, Model: 2C, Voice Control: Yes(Only supports Chinese version) (the best price with coupon)).
Just check coupons out (with price alert and history). What is best price?
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 and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($323.99): BGwhielabel
2. ($329.99): BGCNXM2C
just apply this code in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/feV
Price history and price alert
Price history (for all/most countries) for Xiaomi Mijia 2C Robot Vacuum Cleaner is here. The lowest price was: $323.99.
Price records source(s): 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)).