Y-929 high strength Wall microphone voice bug/ear listen through wall device Description: Specification Y-929 new recorder enhanced version of high strength Wall microphone voice bug/ear listen through wall device bug + record module This record module can be Separate player sound Works on wooden walls, doors, windows, steel plates, etc. Highly Sensitive, carefully adjust audio slowly, as not to cause discomfort to your ear-buds This product is being sold as an investigative tools for law enforcement or licensed investigators. Description: As simple and powerful as possible from a handheld listening device, this audio gadget can let you hear conversations through walls and other barriers. So how does it work Simple, you switch on the Inspector Gadget Audio Listening Device, insert the earphones, and then place the audio bug on the wall and listen to what's being said. This audio gadget works by amplifying the vibrations of audio. When people are talking in a room their voices are simply a waveband, and depending on how loud they are talking, the waveband travels short and long distances which are picked up and amplified by this device. The sensor on this audio gadget senses the vibrations hitting the walls, ceiling and floor and amplifies them so that you can listen to whats being said. If the waveband is low, meaning people talking in a lower note, then you can use the dial located at the back of this cool audio gadget to adjust the volume and increase the sensors amplification. It really makes "more fun and productive. Lets face it, no one really tells the truth straight to your face. So why not find out the truth, you will be amazed what people might say when your whether you are in a motel room, hotel room, your apartment or just in the next room the device will let know whats being said Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Included: 1 * Enhanced Version High Strength Wall Microphone Voice Bug record player