Wireless HD surveillance camera teachers night-vision, mobile control, AP hotspot, two-way audio, video playback, morning alarm, motion detectors, multi-user, record 24-hour footage without SD card, supports Max 128gb SD card, 100 degree vertical by 355 degree horizontal rotation, can be installed on ceiling or sitting on a flat surface. Height 110cm by width 85 cm. For more information and or instructions on surveillance camera message me please.