1.Nature Observing Device: This sound amplifier is for observing nature life from afar. It comes with a built-in 8x zoom monocular. Thanks to this, you'll be able to observe nature into its fullest details. Listen to birds and other animals, everything is possible with this nature observing device. 2.Ideal equipment: With this outdoor birdwatcher gadget, you can hear sounds up to 300ft/100m away. This makes it suitable for observing nature outdoors without disturbing the animals. 3.Easy to use: This product is powered by a 9-volt (not included) battery, and the effect is better when used in an open place. Pull the trigger within the range to amplify the sound. The frequency can be adjusted to reduce noise, allowing your ears to easily feel the beautiful natural notes. 4.8X Monocular: The portable parabolic microphone monoculars have an attractive design, and the 8x monocular telescope enables you to see objects clearly at close range. The ergonomically designed handle can be easily operated with one hand by pulling the on/off trigger. You can adjust the volume from low to high to get better hearing.