AXIS T8355 Digital Microphone is a high-performance and discreet microphone designed for best surveillance in large areas. This is the first microphone with an S/PDIF output carrying digital audio signals between the microphone and network product. Thanks to the digital format with lossless transfer of audio signals, electromagnetic immunity is achieved making it ideal for situations where up to 100 m (328 ft) long cables are required.From hospitals and schools to banks and retail departments, AXIS T8355 Digital Microphone is ideal for any location where you need distance between the audio source and network product.