The NTS-2 was originally released as a bundle with KORG's critically acclaimed PATCH & TWEAK but is now available as a standalone kit. Perfect for musicians and creators of all backgrounds and experience levels embarking on their musical journey, the NTS-2 provides them with solid tools and precise reference to hone their craft. Features 4 Channel Oscilloscope FFT/Spectrum Analyser Dual Waveform Generator Versatile Tuner Specifications Power: USB type-C (2.0, 500mA max) or 2x AAA batteries (approx 2 hours running time) Inputs Input : 3.5mm Stereo x2, ±10V max Through Output : 3.5mm Stereo x2 Output : 3.5mm Mono x2, ±5V max Oscilloscope Display modes : Single, Stereo (Input1L-INPUT1R, Input1L - Input2L, Input2L - Input2R), 4ch?XY(Lissajous, 2ch) Vertical : 10mV~5V/div, AC/DC MODE switchable Horizontal : 50us~1s/div Trigger : Auto, Rise, Fall, Single(rise), Single(fall) FFT (Spectrum Analyzer) Input : mono (1L, 1R, 2L, 2R) Frequency 0Hz~20kHz Function Generator Wave type : sine, square, triangle, saw, noise, pulse, envelope Frequency : 1Hz~10kHz, Hz/NOTE mode switchable, [1ms~10s,sec/BPM switchable(pulse, envelope mode)] Output level : 10Vpp max, V/dB mode switchable Tuner Display mode : Needle, Meter Input : Mono, Stereo (Input1L-Input1R, Input1L-Input2L) Calibration : 410-480Hz