Secretly spy on your friends and listen to conversations up to 300 feet away! Listen to sounds and voices up to 100 feet away with the Bionic Ear listening device. This highly sensitive microphone picks up even the softest whispers and transmits the sounds through the included headphones. Spy on your friends and listen to conversations in the other room with super-power hearing! Look through the targeting scope to sight in your subject, then pull the trigger to amplify the sounds. Microphone features adjustable sensitivity control and background noise reduction for quality sound anywhere.