Basically copy coupon, view price history or create e-mail price alert. What is best price?
power supply Type C Charging, material ABS +Copper, weight 1000g, Battery capacity 2000MAH
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. I am tired of searching coupons, but I found one for you…
Link: Banggood product page
1. ($30.09): BGSCM75
paste coupon code in your cart and click Apply after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): 8BGwbg2204, tRaDetRaCKeR, 8wEbgaInS5, BGAUTO22, BGdcbfa8, BG5e664c, BG8ReviTrage, Cuponation9
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – 2000mAh Type-C Cordless Waxer Polishing Machine [EU] ($-3)
Price history and price alert
Check out price history chart (for all/most countries) for 2000mAh Type-C Cordless Waxer Polishing Machine.
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)).