Use coupon and get Tuya 2.4G WiFi Video Doorbell for $17.99 (from Banggood). Get coupons, create price alert or check price history out! You probably want to know what is the best price?
Latest coupon and price update (UTC):
Tuya 2.4G WiFi Video Doorbell Wireless HD Night Vision Remote Phone Monitoring Two-way Intercom Alarm Notification Push Motion Detection Intelligent Camera Door Bell – Black
Banggood ($17.99)
Banggood warehouse is located in China. I’m afraid that there’s no working coupon in Banggood. Is it expensive? It’s a good price, isn’t it? The average is $18.56.
Link: Banggood product page
Price: $17.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG00c906, BG589b2e
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
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
Here is price history (for all/most countries) for Tuya 2.4G WiFi Video Doorbell.
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)).