I am monitoring price for Wired Wireless and it is for 289.99 USD now (in Banggood). Go down and check coupons out. Remember to check price history if it is available. What is the best price?
Latest coupon and price update (UTC):
Banggood (289.99 USD)
Banggood warehouse is located in China. Well, is it a good price anyway? Pretty sweet, this is the lowest price I have ever noted for this product! Well, there is one coupon available right now.
Link: Banggood product page
Price without coupon: 319.99 USD
Coupon (289.99 USD): BG7a790c
(CouponsFromChina.com tip: paste coupon code in your cart and click Apply after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGTYAP033, BGHONEYSP
(I don’t think these’re gonna work, but you can try ’em out anyway)
Aliexpress
Here are coupons that you can use.
Price history and price alert
Here is price history (for all/most countries) for LUCKY FF918 Wired Wireless Fish Finder 180m.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).