- Long distance listening: hear sounds up to 300 ft / 100 m away, enabling you to observe wildlife without disturbing them. - Built-in monocular: spot animals at a distance or view small creatures in detail. - Sound amplifier with headphone output: 3.5 mm headphone jack and a pair of headphones included to listen quietly without disturbing the surroundings. - Recording and instant playback: can record 12 seconds of sound and ambient noise at once, with instant playback for better observation and analysis of nearby animals. - Sound quality for nature enthusiasts: designed to deliver clear, natural sound suitable for bird watchers and other nature lovers. - Design and operation: powered by a 9-volt battery (not included); works best in open outdoor spaces. Pull the trigger within the aiming range to amplify the sound, and use the adjustable frequency to reduce noise for a more natural listening experience.