KOTION EACH G9000 Gaming Headset Blue (Banggood, Aliexpress: Driver unit: 50mm, Frequency response: 15-20KHz, Impedance: 32ohms, Package Contents: 1x EACH G9000 3.5mm USB Gaming Headset, 1x English and Chinese User Manual (the best price with coupon)).
Price history, coupons and price alert are available on this page. You probably want to know what is the best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($30.73): BGBFAFF2019
2. ($30.73): AFfbG10
apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/feV
Old coupons (from the oldest to the newest): e2bcea, TTxBG10, 2019SPEDM, BG3CSUM
(I don’t think these’re gonna work, but you can try ’em out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – KOTION EACH G9000 Gaming Headset Red ($-3)
Price history and price alert
Check out price history chart (for all/most countries) for KOTION EACH G9000 Gaming Headset Blue. The lowest price was: $17.72.
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)).