Special design and function - Ideal for bird watching and observing wildlife. Features a powerful optical zoom viewfinder with 8x magnification, enabling optical follow without using extra monoculars. Sound detection system - Monitors conversations up to 300 meters away. Includes a handheld parabolic sound dish, capable of hearing sounds up to 300 ft, with an adjustable sensitivity dial. Ease of use and portability - Powered by a 9V battery (not included) and easy to carry. Built-in 8x magnification monocular aids in spotting and observing. Monocular performance and connectivity - Built-in monocular is suitable for spotting animals from afar or observing fine details of smaller animals. Includes a 3.5mm headphone jack with headphones included, and an external recorder can be attached through the 3.5mm jack. Use scenarios - Bird watching in parks or nature reserves to observe songbirds and other wildlife with optical zoom and sound awareness. - Field observation of distant animals or small wildlife, using the monocular for detail and the sound system for ambient audio cues. - Audio documentation in the field by connecting an external recorder or using the included headphones for real-time listening.