Voltcraft-BS-30XHR-Endoscope-Voltcraft-BS-30XHR-P-The-Voltcraft-BS-30XHR-Endoscope-is-a-visual-aid-for-troubleshooting-or-inspection-of-voltage-free-systems-&-installations-The-light-on-the-camera-head-can-be-adjusted-to-suit-various-applications-&-the-camera-image-is-displayed-on-the-built-in-monitor-The-removable-gooseneck-camera-is-waterproof-IP67-&-suitable-for-use-in-watery-liquids-not-acidic-or-basic-solutions-P-P-The-power-supply-is-via-four-AA-batteries-not-included-