Basically copy coupon, view price history or create e-mail price alert. You probably want to know what is the best price?
Material: ABS(Acrylonitrile Butadiene Styrene), Color: Black, Mouse Size: 128x73mm/5.04″x2.87″, Product Name: Gaming Keyboard Mouse Headset Combo, Number of Keyboard Keys: Full 104 keys, Model: J14852, Headset Size: 210x195mm/8.27″x7.68″, Mouse Pad Size: 260x210mm/10.2″x8.27″, Keyboard Size: 436x176mm/17.2″x6.93″
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. I’m afraid that there’s no working coupon in Banggood.
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): BGff5312, BG3dd49f, BG589b2e, BGcf924d, BG8FORMULAMX
(these coupons are old, so probably won’t work)
Price history and price alert
Check out price history chart (for all/most countries) for BlueFinger Keyboard Mouse Headset Combo.
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)).