Compact pinhole Wi‑Fi peephole camera (model XJD‑105C) with a 2‑megapixel Sony CMOS sensor and H.265 video compression. Designed for embedded installation in doors, it has a 1.7 mm lens (≈0.067 in), a diameter of 22 mm (≈0.87 in), minimum illumination 0.001 lux, and draws about 1.4 W from a 5 V supply. The unit is black, intended for indoor use, has no audio output and does not support IR distance.