Viewing Angle 130°, IR Day/Night Distance 10m, LED 3pcs Array IR LEDs, Waterproof IP65, Battery Standby time 10 months, IR Distance 10 meters (32ft.), PIR distance 8m, Mini. Illumination 0Lux (with infrared led on), Battery Use time 4 months (10 times trigger/day), Focal Length 2.8mm, Day Night Mode Auto change with IR-CUT removable, Battery 6000mA 2pcs 18650 rechargeable, Image Compression H.264, Image Sensor 1/2.7″ Color CMOS, Display Resolution 1080P(1920*1080), Lens Type Waterproof Glass Lens.
Price history, coupons and price alert are available on this page. 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 Europe 
. I don’t know if this is a good price – number of records in my database is too low!
Link: Banggood product page
1. ($56.69): BGAFF10OFF
2. ($57.99): 7d18f7
paste coupon code in your cart and click Apply after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGDGA4, BGSAMH, 20%DG422, BGA4CAM, BGDigoo15%, BGSMOFF, BGDGASG, BGSAMRTH, BgcLuBofErtA10, BGDGA4CY, BGA4CLE, BG15SH12, BGA4CLA, BGA4FRM, BGSTHO15, BGHONEY2110, BGSHOM15, 13f142
(probably won’t work, but you can try them out)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – DIGOO DG-A4 1080P IP Camera ($-3)
Price history and price alert
There is only one database record (it was for $50.99), so you can’t see price history chart.
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)).