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Here are coupons that you can use.
Latest coupon and price update (UTC):
Price history and price alert
Check out price history chart (for all/most countries) for Jumper EZBOOK 3 PRO 6/64GB Laptop.
Price records source(s): Gearbest
Click on image to enlarge. 
You can set price alert (for Banggood).
Black Friday Coupon expired and it hasn’t even been Black Friday yet?
Yep. Gearbest published BF coupons before BF. There will be BF coupons on BF too.