$18.89 – 2.4G Intelligent Waterproof RC Boat Ship Wireless Remote Control Devil Fish Creative Toy for Children.
$18.89 – that is current price with coupon for RC Ray Boat Toy (in Banggood). You can create price alert here, copy coupons and view price history. You probably want to know what is the best price?
Latest coupon code price check (UTC time):
Banggood ($18.89)
Banggood warehouse is located in China. There is no active coupon in my database right now (for Banggood). Low/high price? From what I can see this price is higher than average price ($17.73).
Link: Banggood product page
Price: $18.89
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/i1u
Old coupons (from the oldest to the newest): BG589b2e, BG5RCCar, BGRCCar5, BG25RCVE, BG25ALERC
(these codes were not working in latest coupon update, but you can check them out anyway)
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Price history (for all/most countries) for RC Ray Boat Toy is here. The lowest price was: $14.69.
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)).