These premium quality 3D audio recording devices are popular with professional recording engineers as well as amateur enthusiasts looking to record sound ‘binaurally’. Binaural recording is the process using microphones shaped like human ears to capture audio in the same way that we hear. These ears (pinnae) dramatically alter the incoming sound waves, but our brains understand these alterations as directional cues. Furthermore, the time delay between the left and right ear gives us proper directional perception. When listening to binaural recordings with headphones, a natural three-dimensional sound gives the listener the sensation of being in the space where the audio was recorded. This makes 3Dio binaural microphones ideal for applications such as 360 and 180 VR video and any professional recording situation where authentic sound quality is critical.