I have checked all old coupons and price is $41.39 for Mcdodo 15W Magnetic Wireless Charger (in Banggood). Basically copy coupon, view price history or create e-mail price alert. You probably want to know what is the best price?
Mcdodo 15W Magnetic Wireless Charger Car Mount PD3.0 QC3.0 Fast Charging Transparent 360° Rotation Breathing Light
Latest coupon and price update (UTC):
Banggood ($41.39)
Banggood warehouse is located in China. Well, is it a good price anyway? Maybe there’re no more promotions for this item, because current price is higher than average (which is equal $37.29) There is one coupon right now! Check this out.
Link: Banggood product page
Price without coupon: $45.99
1. ($41.39): BGAMMT03
apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGbf0ab2
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Aliexpress
I could not find it on Aliexpress. Click here to search by yourself.
Here are coupons that you can use.
Price history and price alert
Price history (for all/most countries) for Mcdodo 15W Magnetic Wireless Charger is here.
Price records source(s): 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)).