When I was updating this page the price was $69.99 for RC ERA C186MAX RC Helicopter RTF with 2B (in Banggood). You can create price alert here, copy coupons and view price history. What is the best price?
RC ERA C186MAX 2.4G 4CH 6-Axis Gyro Optical Flow Localization Altitude Hold Flybarless RC Helicopter RTF – with 2 Batteries Upgrade Remote Control
Latest price update (UTC time):
Banggood ($69.99)
Banggood warehouse is located in China. Well, is it a good price anyway? Good price! It’s lower than average one ($76.24)! There is one great coupon!
Link: Banggood product page
Price without coupon: $79.99
1. ($69.99): BG3b9768
coupon code has to be applied in shop’s cart 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
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 RC ERA C186MAX RC Helicopter RTF with 2B? 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)).