A spy voice recorder is very useful when you need to discreetly record any conversation either at a moment’s notice or planned in advance. These devices are designed to be extremely unassuming and practical, usually disguised as a variety of everyday objects. Packed with a concealed microphone, a voice-activated spy recorder simply starts recording whenever sound is detected. If there's someone speaking, it immediately terminates its standby mode and it tapes what's being said. This is a narrow pulse nanosecond transmitting a wireless signal technology is ideal for high-speed, short-distance wireless personal communications, it has a very strong ability of anti-multipath interference, especially suitable for indoor complex environment to ensure high sensitivity pickup to provide users with highly reliable wireless transmission environment.

Low-power, low-cost, high reliability. Smart sound monitor function, a radius of 500 meters listener, pickup 100 square meters, 48 hours long standby, the situation is different neighborhoods as the building up to a distance of different, depending on the actual situation of concrete support work while charging, support external audio listening, wireless audio monitoring, intelligent recording monitor.