- User-Friendly Design: Operates on a 9-volt battery (not included). For optimal performance, use in open spaces. Simply aim and pull the trigger to amplify sounds. Adjustable frequency reduces noise, allowing you to appreciate the natural sounds around you. - 8X Monocular Capability: Features a parabolic microphone and an 8x monocular telescope for clear close-range viewing. Ergonomically designed handle allows for easy one-handed operation with a simple on/off trigger. Volume control lets you adjust sound levels for enhanced listening. - Long-Distance Sound Detection: Hear sounds from up to 300ft/100m away, making this device ideal for outdoor birdwatching and nature observation without disturbing wildlife. - Versatile Applications: Perfect for outdoor enthusiasts. Whether you're hunting, attending sports events, or exploring nature, this device functions as a bionic ear, ensuring you don’t miss any important sounds. Bird watchers and nature lovers will appreciate the high-quality audio capture. - Specifications: Lightweight and portable, designed for ease of use in various environments. Compatible with standard 9-volt batteries, ensuring convenience and accessibility for your outdoor adventures. Experience nature like never before with this innovative sound amplification device, designed for clarity and performance in every setting.