When I was updating this page, then coupon price was $18.09 for ShenQiWei 3311M 27Mhz/40Mhz Electric Mini RC Submarine Boat RTR (in Banggood). Price history, coupons and price alert are available on this page. What is the best price?
ShenQiWei 3311M 27Mhz/40Mhz Electric Mini RC Submarine Boat RTR Model Toy – Army Green
Latest coupon and price update (UTC):
Banggood ($18.09)
Banggood warehouse is located in China. There is no active coupon in my database right now (for Banggood). Is it cheap? It’s a good price, isn’t it? The average is $18.83.
Link: Banggood product page
Price: $18.09
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGde1fc4, BGb853a5, BGRCCar5
(I don’t think these’re gonna work, but you can try ’em out anyway)
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
Here is price history (for all/most countries) for ShenQiWei 3311M 27Mhz/40Mhz Electric Mini RC Submarine Boat RTR.
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)).