Check coupons or create price alert down below. Do you want to know what the best price is?
GPU: Mali-450MP, CPU: ARM Cortex-A53, System: Android 7.1, Package Contents: 1x TV Box, 1x Power Adapter, 1x Remote Control, 1x English User Manual
Aliexpress
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Here are coupons that you can use.
Latest price update (UTC time):
Price history and price alert
Here is price history (for all/most countries) for Z66X Z2 2/16GB TV Box.
Price records source(s): Gearbest
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)).