$7.37 – that is current price with coupon for Survival Whistle Colorful (in Banggood). Go down and check coupons out. Remember to check price history if it is available. Let’s see what best price is ATM.
High-frequency 150dB volume, It’s the same as FURA whistle
Latest price update (UTC time):
Banggood ($7.37)
Banggood warehouse is located in China. Hmmm… There is no active coupon in Banggood at this moment. Is it a low price? Well, this price is higher than average price ($6.20)
Link: Banggood product page
Price: $7.37
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
Price history (for all/most countries) for Survival Whistle Colorful is here.
Price records source(s): Gearbest, 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)).