The Dinion IP 4000 HD 720p Box Camera from Bosch has a 1/2.7" progressive scan CMOS sensor and 3.3-12mm varifocal lens to capture 1280 x 720 resolution video at up to 30 fps. A mechanical IR cut filter allows this camera to produce clearer images at night. This camera features two-way audio with a built-in microphone to listen to its surroundings. H.264 and MJPEG compression codecs ensure high-quality recording and playback, while using minimal network bandwidth. PoE technology eliminates the need for additional cable runs by incorporating the power and connection to the NVR into one Ethernet cable.