The S105 recording shield product produces suppressive interference to the speech signal through random acoustic signals, so that the digital recording equipment only has noise information, but can not distinguish the voice signal. Through randomly generated sequences, the original information cannot be restored from the recorded signal, thus ensuring the security of voice messages. This product is suitable for office occasions, for the government, procuratorate, court, discipline commission, military, public security, and other industries involving confidential and important business information has the role of information protection.

good anti-recording effect: our self-developed FPGA-based ultrasonic noise algorithm can effectively interfere with mobile phones, voice recorders and other digital equipment, the anti-recording effect is at the advanced level, and can effectively ensure that the conversation is not recorded, so as to ensure the security of information;

wide range: the protection range of a single anti-recording device is approximately a conical space, the interference range is about 15 square meters, and the interference distance for most mobile phones and other digital products is more than 2 meters, which can form a safe space, in which there is no need to worry about being recorded by others;

many active devices: We have tested iPhone, Huawei, Xiaomi, OPPO, VIVO, Samsung, Nubia, Meizu, Guan and other new and old models of mobile phones, the interference effect is good, the test SONY, Samsung, Newman, Lenovo, Olympus and other recorders, the interference effect is good;

Quiet guardian: the sound waves emitted by the anti-recorder can only be received by mobile phones, voice recorders and other digital products, but people can not hear the sound. Compared with other anti-recorder, there is no buzzing noise, and it can quietly guard the conversation environment is not easy to be noticed.