Aliexpress
Click here… to search for BlitzWolf BW-FWC2 Wireless Fast Charger on Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. One coupon is available. Cool!
Link: Banggood product page
Coupon (15.28 USD): BGAFF10OFF
(CouponsFromChina.com tip: 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
Old coupons (from the oldest to the newest): 16FWC2, 13ca80, Alibuy91232, S20BW, wirbw24, 20FWC2, 502C6B, alibuybb, 12blitzw, bgwf2wc, BGPLBWCH, 2019SPEDM, BGss10%bw, BG3CSUM, BGFWC2BW, BGbwfw2, BGbwqi2, BGBWFWC2, BGwbFWC2, BGFWC2PL, BGBWFWC22, AFfbG10, BGwbwc27, BGVDay10%off, BGBWC25, bGhOnEy10, BGXMI15, BGdragonBoat, BGSS10%SW
(these coupons are old, so probably won’t work)
Price history and price alert
Do you need price history chart (for all/most countries) for BlitzWolf BW-FWC2 Wireless Fast Charger? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).