Micro spy through the walls (20cm of concrete) unique Wall Listening Ninja Spy Device Penetrates 20-CM Solid Description : - Integrated battery - USB charging cable included - Ecpeckers included - Press the product on a wall, a window, a door, etc ... To listen to what is happening on the other side !! - recover the sounds on the opposite side on most objects, up to 20cm of thickness - All accessories are included to allow you to start immediately English Description: - Battery Rechargeable Builtt (Comes with 110V ~ 220V USB/AC Charge) - Simply Push the Device Against A Concrete Wall, Window, Door, etc. To list to the sounds on the other side - Picks up sounds from the other side of most solid objects up to 20cm of thickness - Accessories included to get you started right away.
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