This signal generator adopts USB 5V power supplys, with 1000mAh capacity built-in battery, when the battery is fully-charged, it can work continuously for 8 hours. Equipped with 5 working modes, you can choose PWM mode, pulse mode, signal source mode, sinewaves and triangular waves mode according to your demands. Features: Classical layout control panel, major function has its corresponding button, simple and easy to use. USB 5V power supplys, with 1000mAh capacity built-in battery, when the battery is fully-charged, it can work continuously for 8 hours. Equipped with 5 working modes, you can choose PWM mode, pulse mode, signal source mode, sinewaves and triangular waves mode according to your demands. PWM mode: voltage, frequency, duty cycle can be adjusted, the frequency accuracy is up to 0.1%; voltage ranges: 1-24V, frequency range: 1-150KHz, duty cycle range: 0-100%. Pulse mode: starting-delay time T0: 0-60S, high level time T1: 0-60S, low level time T2: 0-60S, number of pulses P-N: 1-99999999, resolution: 0.001S. Signal source mode: voltage source 0-10V adjustable, current source 0-20mA adjustable. Sinewaves and triangular waves mode: 1-999999HZ adjustable (sine waves and trianglar waves adjustable ranges are same) Signal load capacity: the maximum output current is 20mA (Note: The output of this product is a signal source and cannot directly drive high power loads) Specifications: Name: Signal Generator Material: plastics Battery: 1 * 5V, 1000mAh battery (included) Voltage: 1-24V Frequency: 1-150KHz Ambient temperature: -10 to +70 Item size: 92 * 70 * 28mm / 3.62 * 2.76 * 1.10in Item weight: 105g / 3.70ounce Package size: 150 * 100 * 50mm / 5.91 * 3.94 * 1.97in Package weight: 200g / 7.05ounce Packing List: 1 * Signal Generator 1 * USB Cable 1 * Banana Connector