This device works by amplifying the vibrations of the sound. When people are talking in a room, their voices emit a range of frequencies and depending on how loud you speak, the bands of sound are picked up and amplified by this device.
If the frequency band is low, that is to say the people speak in a volume lower, then you can use the dial located at the back of the earphone has to adjust the volume and increase the amplification of the sound sensors.
The earphone has is a device of high audio sensitivity and should be used with care.
- Built for listening through walls
- Captures sound through walls, brick, wood, windows and doors.
- High sensitivity Detector
- It helps to listen to the conversations that occur in the interior of a room.
The package includes :
- 1 listening device
- 1 pair of headphones
- 1 USB cable
Frequently Asked Questions
What is the distance permitted to listen to the voices in the other room?
The distance depends on the thickness of the wall. It is not the same that the device has to pass through a wall of stone, brick, etc
The device works best when the wall has a thickness between 15 and 25 centimeters. Will also work well with distances of approximately 10 meters, depending on the volume of sound from the other end of the wall.
Can I record what I am listening to?
The gets comes with a headphone input 3.5 mm jack, but does not come with a recording device, it is possible to connect a voice recorder using the headphone output.
How long should I charge the battery and how long?
The earphone has to be charged via USB or the supplied charger for an hour or two. After this load, the device will have an autonomy of 2 to 3 hours.