$5.99 – BENGGUO Bicycle Horn 120dB High Sound Bike Bell Horn 5 Light Modes 200mAh Type-C Waterproof Electric Horn for Cycling – Black.
Latest update shows that BENGGUO Bicycle Horn 120dB Bike Bell costs $5.99 (in Banggood). Basically copy coupon, view price history or create e-mail price alert. Best price?
Latest coupon and price update (UTC):
Banggood ($5.99)
Banggood warehouse is located in China. There is no active coupon in my database right now (for Banggood). But wait a sec… Is it a good price? My database says that it’s pretty good price, coz average is $6.49.
Link: Banggood product page
Price: $5.99
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGTY12M30, BG6e6399, BG01TYJ54
(probably won’t work, but you can try them out)
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
Check out price history chart (for all/most countries) for BENGGUO Bicycle Horn 120dB Bike Bell. The lowest price was: $4.99.
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)).