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