You can get 400 Games Retro Handheld Game Console for $9.39 using coupon code (in Banggood). Go down and check coupons out. Remember to check price history if it is available. Best price?
Latest coupon and price update (UTC):
400 Games Retro Handheld Game Console 8-Bit 3.0 Inch Color LCD Kids Portable Mini Video Game Player – Blue
Banggood ($9.39)
Banggood warehouse is located in China. Isn’t it too expensive? Pretty good price – average ($10.10) is higher than current one! One coupon is available. Cool!
Link: Banggood product page
Price without coupon: $9.99
1. ($9.39): BG982d4b
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): BG589b2e, BG0751e0, BGab3529, BG85c0df, BG1f1971, BG40e377, BGf9c1ad, BGeaf4e2, BGbec9d8, BGRSEPT400
(probably won’t work, but you can try them out)
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Do you need price history chart (for all/most countries) for 400 Games Retro Handheld Game Console? There we go.
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)).