Product Structure 3. Headphone volume/mute control ~Tum the knob to adjust headphone volume. Press the knob to telecommute the microphone. 4. Locking knob for angle adjustment 5. Desktop stand 6.USB-C audio output 7.3.5mm headphone output 8. Locking knob for stand to USB-C audio output cable Instruction Manual 2. Tumn the gain control and the volume control knobs halfway towards max before recording. Thanks for choosing Mo vol ‘The Moro Web Mic is a desktop USB microphone built for PC/Mac computers.