Just check coupons out (with price alert and history). You probably want to know what is the best price?
0.65L, Battery: built-in 6 lithium-ion batteries, each battery capacity is 2200mAh, Working time: 25 minutes, Charging time: 3 hours, Dust tank capacity: 0.65L, Suction: 7000 Pa, Noise: less than 83dB
Aliexpress
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Price history and price alert
Check out price history chart (for all/most countries) for Alfawise HC-1D03 Cordless Vacuum Cleaner [Fast-08].
Price records source(s): Gearbest
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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)).