Aliexpress
Click here… to search for Lenovo X5 Bone Conduction Bluetooth 5.0 Headphones on Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. Hmmm… There is no active coupon in Banggood at this moment.
Link: Banggood product page
Price: -3 USD
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
Old coupons (from the oldest to the newest): BG3f1bcd, BG376c91, BG7f4b9ces, BGBuscape01, BGBRPL2, BGHOTSHOP15, BG53e9c8, BGAlerabatKL
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Price history (for all/most countries) for Lenovo X5 Bone Conduction Bluetooth 5.0 Headphones is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).