Wall Listening Device

We bring forth a superior variety of Wall Listening Device that works by the principle of amplifying the vibration of audio. The wall listening device works best on wooden walls, doors, windows, steel plates, etc with a barrier thickness of 6“ to 10“ inches. The wall listening device can be acquired by the esteemed clients at market leading prices. salient features :

• works on cement wall, lanter, concrete wall
• works on wooden walls, doors, windows, steel plates, etc.
• spy bug with earphones
• volume dial to amplify sounds
• 3.5mm earphone jack
• on/off switch button with volume dial
• built in rechargeable battery
• highly sensitive
• dimensions : l:43 x diameter:36 (mm)