Function: 1.Made of high quality material, durable and practical in use. Specification: Item Type: Function Generator Material: ABS Color: As shown in the image Frequency range: Sine wave 1Hz to 500kHz (the size is flat to 200kHz, above 200kHz, the size can decrease as the frequency increases), other waveforms 1Hz-20kHz with good phase noise and small distortion, if you do not care about the phase noise and distortion can perform the full frequency range. Resolution: 1Hz Output Waveforms: Sine wave, square wave, triangular wave, forward saw tooth wave, reverse saw tooth wave. Sine wave distortion: 1% (frequency <1kHz); 0.5% (frequency>=1kHz) Output Amplitude: Maximum ±10V (P-P). Output impedance: 50 ohm DC Offset: Maximum ±10V, can be switched off Internal filter: for sine wave or pulse, can be turned on/off Power supply: DC3.5-10V DC 5V adapter or 3.7V Lithium battery is recommended. Weight: Approximately. 172g/6.1oz Package List: 1 x Function Generator1 x USB Cable1 x Instruction Manual Note: 1. Please note an error margin of 1-2 cm due to manual measurement. Thank you for understanding.2. Monitors are not calibrated the same, item color displayed in photos may differ slightly from the real object. Please take the real standard.3. Please note that the new type and old type of this product will be shipped randomly and make sure you don't mind before ordering.