$29.99 – QD18 6MP Three-lens WiFi+bluetooth IP Camera Three Screen PTZ Camera Night Vision Auto Motion Tracking Two-way Audio Waterproof Dual Integrated Antennas CCTV Video Surveillance Cameras – EU Plug.
According to my DB the lowest price is $29.99 for QD18 6MP Three-lens WiFi Bluetooth IP Camera (in Banggood). Basically copy coupon, view price history or create e-mail price alert. Let’s see what best price is ATM.
Latest coupon and price update (UTC):
Banggood ($29.99)
Banggood warehouse is located in China. Price? This price is great, coz it’s the lowest in CouponsFromChina database! There is one coupon right now! Check this out.
Link: Banggood product page
Price without coupon: $32.99
1. ($29.99): BGEULABOR6
coupon code has to be applied in shop’s cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
This is the best price ever noted in my database!
Old coupons (from the oldest to the newest): BGTYQD18
(probably won’t work, but you can try them out)
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Price history (for all/most countries) for QD18 6MP Three-lens WiFi Bluetooth IP Camera is here. The lowest price was: $29.99.
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)).