Since this item is new and unused, I am unable to provide detailed information. Please contact the manufacturer regarding initial defects. 2K high resolution, 131° wide-angle lens, and DWDR technology record clear images even in backlight. Color night vision up to 15m. High-precision human detection and notification function PIR sensor + AI human detection significantly reduces false detections. Real-time notifications to your smartphone when a person is detected. Remote monitoring is possible with the "Seeing" app. Two-way communication and remote operation Built-in microphone and speaker for conversation. Supports package delivery and warnings to suspicious individuals. Multiple cameras can be operated and monitored simultaneously with the "Posinu" app. Waterproof design and battery-powered IP65 waterproof performance ensures peace of mind in bad weather. The USB port is sealed to maintain waterproofness during charging. No solar panel required.