4 million 2-inch dual-light gun balls; Dual 2-megapixel pixels, dual screens, manual adjustable bullet camera Angle, pan-tilt rotation 355 degrees left and right, 90 degrees up and down, H.265 compression, intelligent dual light sources, full-color night vision, wireless WiFi, mobile phone remote, AP hotspot, two-way voice intercom, voice alarm, intelligent message push, support for cloud storage, TF card storage, intelligent human figure tracking, with network port Wall-mounted and ceiling-mounted brackets