Listen to faint and far away sounds with a range up to 300 feet! Includes background noise reduction that makes your hearing amazingly clear! The highly sensitive microphone picks up even the softest whispers and transmits the sound through the included headphones. Spy on friends and listen to conversations with the super-power hearing! Look through the targeting scope to sight your subject, then pull the trigger to amplify the sounds. Microphone features adjustable sensitivity control and background noise reduction for quality sound. Another great kit from Scientific Explorer. This science toy is a great gift for kids 6 years and older. Headphones included!