A vocal tuning device for use with a microphone is provided, comprising a housing having a first end and a second end, wherein the first end includes a first connector operably matable with a microphone and capable of receiving an input signal from the microphone in response to a user's voice; a display on the housing capable of providing a visual indicia to a user; processing circuitry within the housing and operably connected between the first connector and the display, wherein the processing circuitry compares the frequency of the input signal to a natural note frequency, and causes the visual indicia to indicate whether the natural note frequency is matched by the frequency of the input signal. In one embodiment, the second end of the device includes a second connector operably matable with a microphone cable.