The Teslong is a precision-engineered bore scope designed for detailed inspection tasks. It features a 26 inches rigid probe specifically calibrated for .22 Cal applications, ensuring optimal focus and clarity in confined spaces. The device is equipped with a 4.5 inches IPS screen, providing high-resolution visual feedback with accurate color representation and wide viewing angles. This bore scope is ideal for professionals requiring meticulous examination capabilities, offering robust construction and advanced imaging technology to facilitate comprehensive inspections. 26 inches focus and fold rigid borescope probe with precision optics and articulating mechanism for enhanced visual inspection in confined spaces Collapses to a length of 14 inches Independent display unit - operates without companion application Compatible with .20 Cal or larger barrels Image capturing resolution is 1920x1080 pixels Video recording resolution is 1280x720 pixels Screen resolution of 854 x 480 pixels 32 GB microSD card storage 2500 mAh lithium-ion battery Battery life of 4 hr Integrated USB-C charging interface and Micro-SD/TF card expansion slot for enhanced connectivity and data transfer capabilities Foldable rigid probe with a length of 26 inches when extended and 14 inches when folded Six adjustable high-intensity LEDs Ingress protection - certified IP67, ensuring water and dust resistance with a maximum immersion depth of 1 m for up to 30 min, compliant with IEC 60529 standards Internal manual focusing mechanism the internal manual focusing mechanism is designed to provide precise control over-the-focus of optical devices This mechanism allows users to manually adjust the focus without altering the physical length of the device It is particularly beneficial in maintaining the balance and stability of the equipment during operation The mechanism typically involves a series of internal lenses that move independently within the housing, ensuring that the external dimensions remain constant This design is advantageous for applications requiring consistent performance and reliability, such as in professional photography and advanced optical instrumentation