Overview: Surveillance is part of a spy's life. Whether you're on the trail of an agent or checking for movement before entering a controlled zone (your sister's bedroom) you need to know what's happening.
Benefit: Hear even a whisper!
Features: - Amplifies Sounds and Vibrations from far Away - Tap Conversations through a Window - Zoom in on what you want to Hear - Automatic Volume Limiter Protects Ears from Loud Noises - Headphones Included