Price history, coupons and price alert are available on this page. You probably want to know what is the best price?
Driver unit: 6mm, Frequency response: 20-20000Hz, Impedance: 16ohms, Sensitivity: 93dB ± 3dB, Micphone Sensitivity: -42db±3db
Aliexpress
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Here are coupons that you can use.
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Price history and price alert
Check out price history chart (for all/most countries) for Qbuds W1 TWS Dual Bluetooth Headset.
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)).