Headphone jack: about 3.5mm/0.14inch, CPU: RK3326 quad-core 1.5GHZ, Charging support: type-C, Battery life: 6 hours, System: open source for LNUX, Charging time: 2.5 hours, Screen: 3.5-inch IPS, Games: 64GB: 3000+; 128GB: 5000+ 256GB: 8000+, Maximum power consumption: 2W/H, TF card: 64GB/128GB, WFH+Bluetooth combo module: RTL8723BU, DDR3: 1GB, Input power: 5V/2A, Built-in speaker: 1W, Size: about 108x 93x 20MM/4.25x 3.66x 0.79inch, Built-in lithium battery: 3000mAh, Game: fit for N64/ for PS1/for CP3CP2/for CP1/for NEOGEO/for GBA/for NES/for SFC/for MD/for GBC/for GB and other emulators.
Basically copy coupon, view price history or create e-mail price alert. 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. Only one coupon available!
Link: Banggood product page
1. ($98.17): BGAlerabat5
put item in your cart and apply coupon code there after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGJPN3RB, BGJOE7E, BG5d6806, BGVDGC12
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Price history and price alert
Check out price history chart (for all/most countries) for POWKIDDY RGB20 RK3326 128GB 3.5 inch Game Console. The lowest price was: $92.4.
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)).