I have just checked coupons. The lowest price I could get is 18.99 USD for Eachine EC71 RTR RC Car with Two Batteries (in Banggood). Just check coupons out (with price alert and history). Let’s see what best price is ATM.
Latest coupon code price check (UTC time):
Banggood (18.99 USD)
Banggood warehouse is located in China. I couldn’t find any coupon for this product on latest product update. The question is – is it a good price? Maybe there’re no more promotions for this item, because current price is higher than average (which is equal 9.93 USD)
Link: Banggood product page
Price: 18.99 USD
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGf68f70, BGEC71, BGHU1138, BGVehicle30, BGVehicles10, BG00c906, ADMITAD2212, BGCityadsRC, BGVE71, Terence, Cuponation9, BGRCEachine, BGaca486, BG7e1918, BG96407d, BGMatt2022, BGd35167, BG589b2e, BG5RCCar, BGRCCar5
(these coupons are old, so probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Eachine EC71 RTR RC Car with Two Batteries [EU] (-3 USD)
Aliexpress
Here are coupons that you can use.
Price history and price alert
Do you need price history chart (for all/most countries) for Eachine EC71 RTR RC Car with Two Batteries? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).