The ultra-lightweight audio tool that provides live reference tones for sound frequency research projects and general audio tests. WARNING!! This app generates a resolute signal at +0dB relative to your amplification. Please observe your external volume settings when using this app. - 1Hz to 20kHz bandwidth - CD quality sampling at 16bits 44.1KHz - digital frequency input (tap to set) - 5 programmable frequency presets (long press) - ultra low latency control slider - built in oscillators for Sine, Square and Bopper waveforms - adjustable random white noise - stereo sound output switches for Left/Right ON/OFF - high precision frequency control dial - plays in background