Fangrui Product Details I.the Main Technical Parameters: 1. Output Waveforms: Sine Wave, Square Wave, Triangle Wave, Forward Sawtooth Wave, Reverse Sawtooth Wave, Ecg Wave, Exponential Rise, Exponential Fall, Lorentz Pulse, Gauss Pulse, Sinc Pulse, Half-wave, Fll-wave, Schumann Wave, Noise Wave, And So On 15 Kinds Of Waveforms. 2. Power Supply: Dc4-9v, Dc5v Is Recommended When Using Adapter, 3.7v Lithium Battery Is Recommended When Using Battery Power. 3. Current: 180ma At Voltage 5v 4. Frequency Range: Sine Wave 0.01hz- 500.00khz (with Further Increase In Frequency, The Output Amplitude Will Decrease), Other Waveforms 0.01hz-100.00khz (but Does Not Limit The Upper Limit Of The Adjustable Frequency, If The Distortion And Jitter Requirements Are Not High, The Use Of Frequency Can Be Further Increased). 5. Resolution: 0.01hz. 6. Sine Wave Distortion: Less Than Below 1khz, Less Than 0. Above 1khz. 7. Output Amplitude: Maximum T10v (p-p). 8. Output Impedance: 50 Ohms. 9. Dc Offset: Maximum10v, With Shutdown Function. 10. All