- Built-in rechargeable battery (comes with 110V~220V USB/AC charger)
- Simply push the device against a concrete wall, window, door, etc to listen 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
Wall Listening Ninja Device (Penetrates 20-cm Solid Concrete)
- Product Code:
- Availability: In Stock
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$56