You can create price alert here, copy coupons and view price history. Let’s see what best price is ATM.
Running Time: 60 minutes, Charging Time: 60-90 minutes, Voltage: AC110-240V 50/60Hz, Battery: Lithium Battery, Screen: High Definition LED Screen, Shell Material: Stainless Steel Body Part + ABS Material + LED Screen, Power: 6W, Brand: SURKER, Head Material: Titanium + Ceramic knife, Weight: App.690g
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 don’t think there is an active coupon right now – at least in my database.
Link: Banggood product page
Price: $-3
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 and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): clipper1, vipupgrade8
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Check out price history chart (for all/most countries) for SURKER Hair Clipper.
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)).