I have just checked coupons. The lowest price I could get is $30.99 for SONOFF CAM Slim IP Camera 1080P (in Banggood). Just check coupons out (with price alert and history). Let’s see what best price is ATM.
Latest coupon code price check (UTC time):
SONOFF CAM Slim Wi-Fi Smart Security Camera 1080P HD Two-way Audio Surveillance Automatic Tracking Motion Alarm Work with Alexa
Banggood ($30.99)
Banggood warehouse is located in China. I couldn’t find any coupon for this product on latest product update. But wait a sec… Is it a good price? This price is higher than average price ($29.00) for this item.
Link: Banggood product page
Price: $30.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): Cuponation9, BG8ReviTrage, BGcoupon8off, BGGutscheine, BG00c906, BG8OFFCOUPON, TTBLACK5, 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 SONOFF CAM Slim IP Camera 1080P.
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)).