Memory: support TF memory card 8GB – 32GB, DNS, Night vision distance: 10 meters, FTP, Sensor: 1.4 inches 720P OV9732 CMOS sensor, automatic gain control, IP, SMTP, built-in ARM926 440MHz high-speed video coprocessor, etc., Noise ratio: more than 39dB, RTSP, TCP, automatic backlight compensation, Network protocol: TCP, 0.3Lux / F1.4 (black and white mode), 166-degree wide angle, P2P, Frame rate: 30fps, WiFi connection: support (802.11 b / g / n), DDNS, DHCP, Recording mode: 1. Motion detection video doorbell; 2. Button trigger recording; 3. Manual recording, Lens: 1.7mm lens, UDP, Minimum illumination: 0.8Lux / F1.4 (color mode), NTP, Working voltage AC: 8 – 12V; DC: 5V 1.5A, HTTP, Battery type: 3 18650 batteries (not included), Night vision: dual filter automatically switches, Sensor performance: supports automatic white balance, Video format: H.264 Main Profile / H .264 Baseline Profile / MJPEG / JPEG, CPU: HiSilicon Hi3518EV200, UPnP.
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.
Updated:
Price history and price alert
Price history (for all/most countries) for Alfawise L10 Smart Camera Doorbell is here. The lowest price was: $33.99.
Price records source(s): Gearbest
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)).