Knight 4K , Sensor size 1/2.8” , Pixel Resolution 8 Mega Pixel , Lens data 2.8mm/3.6mm , Microphone Built-in , IEEE 802.11 b/g , IEEE 802.11n , IEEE 802.11ac , IEEE 802.11ax , 1xMicroSD Card Slot , Supports card capacities up to 256GB , Power options 12V , Power supply requirements DC 12V 1.5A , box quantity 1