1.Easy to use: Its built-in monocular is great for spotting animals from afar or for watching at the slightest details of smaller animals. It comes with a 3.5mm headphone jack. The sound amplifier also comes with its own pair of headphones. 2.8X Monocular: 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. 3.Special design and function: This sound amplifier is capable of recording 12 seconds and noise at once. It also comes with instant playback features. This allows you to fully observe and analyze the animals in your surroundings. Bird watchers and nature lovers will be thrilled at the sound quality of this ingenious listening device. 4.Long Distance Listening: With this outdoor gadget, you'll never lose track of your favorite animal again. It allows you to hear sounds up to 300ft/100m away. This makes it the perfect outdoor gadget to observe nature without disturbing the animals.