I have checked all old coupons and price is $6.99 for Wireless WiFi Doorbell Camera 480P (in Banggood). Get coupons, create price alert or check price history out! You probably want to know what is the best price?
Wireless WiFi Doorbell Camera Waterproof 480P High-definition Video Doorbell Intelligent Outdoor Wireless Doorbell With Cam – Black
Latest coupon and price update (UTC):
Banggood ($6.99)
Banggood warehouse is located in China. There are no coupons available at this moment in Banggood. Price? Current price is the lowest in history (according to CouponsFromChina database)!
Link: Banggood product page
Price: $6.99
This is the best price ever noted in my database!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG589b2e
(I don’t think these’re gonna work, but you can try ’em 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 Wireless WiFi Doorbell Camera 480P.
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)).