The acoustic safe is designed to protect voice information circulating in places where the owner of a cell phone is located in case of its activation for the purpose of wiretapping.
"Ladya" guarantees protection of the owner of a cell phone from covert information interception via cellular communication channels by unauthorized activation of his device in the remote information access mode. Protection is provided by automatic acoustic noise pollution of the voice information transmission path when an attempt is made to remotely turn on the microphone of the cell phone handset.
The cell phone handset is placed in a desktop pencil holder. In case of covert remote activation of the phone in the wiretapping mode, the only unmasking sign is a change in the electromagnetic field strength (since the cell phone transmitter is unauthorizedly switched on for transmission). This change is recorded by the field indicator, which is part of the device, which gives a command to automatically turn on the acoustic noise generator located inside the volume of the "Ladya" product. The level of acoustic noise at the input of the microphone of the mobile phone handset is such that the entire speech information transmission path is guaranteed to be closed.
Protection against speech information leakage through GSM 900/1800/3 G /4 G / Sky link / Wi-Fi / BT channels
The noise level at the point of placement of the mobile phone microphone is not less than 100 dB Effective spectrum of the noise signal is 250 - 4000 Hz Power supply: two AAA batteries Continuous operation time from one set of batteries is not less than 6 months