WIFI Connection Wi-Fi IEEE 802.11b/g/n 2.4GHz, Focal Length 3.9mm, Lens Angle 110°, Weight 0.239kg, Power Input 5V/1A, OS Support Android 4.4 or iOS 9.0 or above, Working Temperature -10℃-50℃, Size 118*78*78mm, Definition 360°.
Go down and check coupons out. Remember to check price history if it is available. Best price?
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.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in Hong Kong. Too bad there’s no coupon right now in Banggood.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGXMPTZ, BGPTZXM, BGCAMXM, BGHOMEAPP, BGSMARTHO, BGTT10, bGhOnEy10, BGSM15, BGSMOFF, BGCHK, BGXMCH, bgshOOp10, BGSAMRTH, BgcLuBofErtA10, BGXMCHK
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Price history (for all/most countries) for Xiaomi Mijia 1080P 360 PTZ IP Camera is here. The lowest price was: $24.99.
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)).