Check if there is $18.99 coupon for Beebest Bluetooth 5.3 Intercom Headset 1S DSP (in Banggood). Just check coupons out (with price alert and history). Let’s see what best price is ATM.
Standby Time: 125 hours, Battery Type: Lithium-ion polymer battery, Model: BE608, Product Name: Polar bee bluetooth intercom headset 1S, Battery Capacity: 110mAh (0.41Wh), Product Weight: 19g, Product Model: BE608, bluetooth Version: 5.3, Brand: Xiaomi BEEBEST
Latest coupon and price update (UTC):
Banggood ($18.99)
Banggood warehouse is located in China. I can’t find any active coupons for this product in Banggood. You probably want to know if this is a good price. From what I can see this price is higher than average price ($17.47).
Link: Banggood product page
Price: $18.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGAudio9
(probably won’t work, but you can try them out)
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
Check out price history chart (for all/most countries) for Beebest Bluetooth 5.3 Intercom Headset 1S DSP.
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)).