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Audio receiver and tap kit  : http://spy.eu/listening-devices-spy-shops/591_B20.html With this kit you can conduct audio tapping without being dependent on the mobile operators. The outstanding ease of use enables unexperienced individuals to operate this. Turn the switch on "bug" to the marked position in red, place it in the desired position, rotate the round button on the receiver to adjust the desired volume.

Audio receiver and tap kit : http://spy.eu/listening-devices-spy-shops/591_B20.html With this kit you can conduct audio tapping without being dependent on the mobile operators. The outstanding ease of use enables unexperienced individuals to operate this. Turn the switch on "bug" to the marked position in red, place it in the desired position, rotate the round button on the receiver to adjust the desired volume.

Room Spy Bug Audio Surveillance Listening Device

Room Spy Bug Audio Surveillance Listening Device

WWI Military Listening Device.

dual-head-mounted-listening-device listening vintage hearing hear listen military invention device man ears

indypendenthistory:   WWI Listening device (via Acoustic Listening Devices)

Pre-radar Listener for Enemy Aircraft Before radar, troops used acoustic mirrors and listening devices like these to focus and detect the sound of engines from approaching aircraft.from vintage everyday: 10 Jobs That No Longer Exist Today

Camera eyepiece close-up

How to Detect Hidden Cameras & Listening Devices

Room Spy Bug Audio Surveillance Listening Device | OhGizmo!

Let's not get into the legality of this device. But if you have a need to listen in on conversations for whatever reason, the Spy Bug Audio Surveillance gadget pictured…

Let’s not get into the legality of this device. But if you have a need to listen in on conversations for whatever reason, the Spy Bug Audio Surveillance gadget pictured above should do the trick. About as small as a pack of matches, it accepts a SIM card, which means you can just call it anytime you want to eavesdrop. Better yet, you can set it so that anytime there’s a sound above 45dB within 10m, it calls you! $60

Let’s not get into the legality of this device. But if you have a need to listen in on conversations for whatever reason, the Spy Bug Audio Surveillance gadget pictured above should do the trick. About as small as a pack of matches, it accepts a SIM card,

Surveillance Gadgets: Extreme Sound Amplifier Spy Listening Device Ear Bionic Birds Recording Watcher -> BUY IT NOW ONLY: $32.98 on eBay!

Surveillance Gadgets: Extreme Sound Amplifier Spy Listening Device Ear Bionic Birds Recording Watcher -> BUY IT NOW ONLY: $32.98 on eBay!

Surveillance Gadgets: Parabolic Microphone Spy Listening Device Bionic Ear Sound Amplifier 300M -> BUY IT NOW ONLY: $30.1 on eBay!

Surveillance Gadgets: Parabolic Microphone Spy Listening Device Bionic Ear Sound Amplifier 300M -> BUY IT NOW ONLY: $30.1 on eBay!

Used Cell Phones Are Stopping Illegal Logging and More:  Rainforest Connection transforms recycled cell phones into solar-powered listening devices that can monitor and pinpoint chainsaw activity at great distance – and contact authorities who can stop illegal logging.

TriplePundit hosted August's "Stories & Beer" at the Impact Hub SF (or online) - a discussion that focused on deforestation, labor rights & your cell phone!

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