Wattage: 1.8W, Built-in 2800mAh Li-ion battery, Noise: 31.5dB, Working time: 500h (1.8W lowest power), Package Contents: 1x Pillar (Motor), 1x Fan Component, 1x Base, 1x Blade Knob, 1x Fan Cover Knob, 1x Base Bolt, 1x Fan Cover Bolt, 1x Cable.
Get coupons, create price alert or check price history out! Let’s see what best price is ATM.
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
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. You can get coupon down below.
Link: Banggood product page
1. ($180.75): 427168
put item in your cart and apply coupon code there after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/i1u
Price history and price alert
Price history (for all/most countries) for Xiaomi Floor Fan DC Frequency is here. The lowest price was: $138.65.
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)).