Product description: Brand new and high quality The main output waveform : sine and square-, triangle , sawtooth Maximum output amplitude:± 10Vpp (no-load) Output impedance :50?±10% Dc bias: ± 10V (no-load) Display: LCD1602 Resolution :1 Hz power supply: DC 3.5-10V Output frequency range: sine : 1Hz-500KHz Square-: 1 Hz - 20kHz (the valid range) Triangle :1 Hz - 20KHz (the valid range) Sawtooth :1 Hz ~ 20kHz (the valid range) Package included: 1 Pcs * DDS Function Generator