Elektrosluch 3+

Stereo electromagnetic listener · 3.5 mm headphone / line-out

Open-source handheld device for electromagnetic listening. Discover the sonic worlds of electromagnetic fields surrounding our every step. The most sensitive Elektrosluch yet — state-of-the-art operational amplifier with significantly improved signal-to-noise ratio and extended frequency response for capturing delicate electromagnetic sounds with greater detail.

In the box: 1× Elektrosluch 3+, 1× 9V battery

Stereophonic electromagnetic listening
State-of-the-art op-amp for improved SNR
Extended frequency response
60 dB maximum gain
External input for additional sensors
Open-source design (CC NC-BY-SA)
9V battery powered
Compact handheld form

Parameter	Value
Power Supply	9V battery (user replaceable)
Output	3.5 mm stereo headphone/line output
External Input	3.5 mm stereo minijack
Maximum Gain	60 dB
Operating Temperature	-10 to +55°C
Storage Temperature	-25 to +70°C
Design	Concept & electronics by Jonáš Gruska, artwork by Birch Cooper, made in EU

Plug your headphones into the output
Turn on the device with the volume knob
Move the device with the sensors pointing towards the electromagnetic field source
Adjust the volume for optimal listening experience. Start with the volume low and be careful with your ears.
Enjoy!