The Classis BM 53 USB microphone from Beyerdynamic is the plug & play solution for recording or transmitting sound using a laptop or PC. When using an adapter, it is also a practical solution for mobile applications with smart devices (depending on the system requirements). It improves the audio quality when recording meetings, reports and podcasts. This USB boundary microphone is also perfect for teleconferences, video conferences, Skype conferences (Windows or OS X) and teaching purposes. When speaking, people appreciate the quality of communication improved by this microphone. The microphone can be simply attached to a laptop or PC using the included 3 m (9.84 ft) USB cable, and recording can begin. When using a boundary microphone with a semi-spherical polar pattern, the direction of speaking is immaterial. To record meetings, the microphone can simply be placed in the middle of the conference table. Thanks to Scudio technology there will be no disturbance caused by mobile telephones. The Classis BM 53 USB has a silent film button with braille. Depending on the application, you can choose between the operating modes ON/OFF, Push-To-Talk (PTT) and Push-To-Mute (PTM). In order to reduce low-frequency noise, the frequency response can be adjusted with a bass roll off switch of 150 Hz. The switchable gain of -10 dB, 0 dB and +10 dB is to compensate loud or quiet speakers and small or large distances between microphone and speaker. An LED indicator shows the ready-to-talk status. The rugged housing with a high-quality design is covered with a very exclusive, dust repellent black fabric.