Latest update shows that 110dB High Sound Bike Horn Alarm for Electric Scooter Bike costs 7.99 USD (in Banggood). Basically copy coupon, view price history or create e-mail price alert. Let’s see what best price is ATM.
Latest price update (UTC time):
Banggood (7.99 USD)
Banggood warehouse is located in China. I can’t find any active coupons for this product in Banggood. I think you want to know if the price is good. Pretty sweet, this is the lowest price I have ever noted for this product!
Link: Banggood product page
Price: 7.99 USD
7.99 USD – This is the best price ever noted in my database!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGaef277, BG589b2e, BGa5df81
(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
Price history (for all/most countries) for 110dB High Sound Bike Horn Alarm for Electric Scooter Bike is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).