Aliexpress
Click here… to search for PIPO N8 2/16GB Tablet on Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (79.97 USD): aff7off
Coupon (79.97 USD): bgchinafest
(CouponsFromChina.com tip: just apply this code in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): de85f9, 49188d
(probably won’t work, but you can try them out)
Price history and price alert
Price history (for all/most countries) for PIPO N8 2/16GB Tablet is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).