●The diameter of the probe camera is only 5.5mm (0.21") , which can easily pass through small openings such as the spark plug hole of automotive engines & various small space of the sort. ●The 4.3 inch monitor comes with clear real-time detailed video feed, with a Built-in 2000mAh High-Capacity Rechargeable Battery. The Endoscope can be used right out of the box, with no need for external hardware or software. ●The flexible probe included with the Endoscope kit adopts an IP67 water-resistant design, which allow for safe use in drain pipes, bathtubs and other wet environments. ●Including a removable 32GB MicroSD memory-card, you can capture images, record video during inspections, and playback all captured media on the Endoscope monitor or your PC. ●Included with this Endosocpe kit are 3 helpful accessories: a Hook attachment for object retreivals, a Side-View Mirror for different viewing angles & a Magnet attachment for metallic objects that are just out of reach.