1.Nature Observing Device: This sound amplifier is perfect 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 the perfect outdoor gadget to observe nature without disturbing the animals. 3.Easy to use: This product is powered by a 9-volt (not included) battery, and the effect will be better when used in an open place. Within the aiming range, pull the trigger 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: parabolic microphone monoculars design is very attractive, and the 8x monocular telescope allows you to see objects clearly at close range. The ergonomically designed handle can be easily operated with one hand only by pulling the on/off trigger. You can adjust the volume from low to high to get better hearing.