["Adjustable Signal Generator Sources Built-in Battery Pwm Pulse Sine Wave Current Voltage Analog Simulator brand new, high quality Features: Power supply voltage: USB 5V (can work continuously for 8 hours when the Built-in battery is fully charged) Product function: PWM mode, pulse mode, signal source mode, sine mode PWM mode: voltage, frequency, duty cycle are adjustable frequency accuracy is up to 0.1%; voltage range: 1-24 V, frequency range: 1-150 KHZ, duty cycle range: 0- Pulse mode: start delay for time T0: 0-60 S, high for time T1: 0-60 S, low for time T2: 0 -60 S, pulse number PN: 1-99999999, resolution: 0.001 S Signal source mode: adjustable voltage source 2-10 V, adjustable current source 4-20mA Sine mode: 1-999999 HZ adjustable (triangular wave adjustable range is the same) Signal charging power: The maximum output current is 20mA (Note: this product is a signal source and not direct drive high power loads) Specifications: Item Type: Ambient temperature: -10- + 70 ℃ Power supply voltage: USB 5V Product function: PWM mode, pulse mode, signal source mode, sine mode Material: ABS Size: approx.92x70x28mm / 3.62x2.76x1.10in Color: As Shown Quantity: 1 Pc Note: No retail package. Transition: 1cm = 10mm = 0.39inch. Please allow 0-1cm error due to manual measurement. Pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Includes: 1 x Adjustable Signal Generator. 1 x charging USB cable 1 x Banana for head connected to for crocodile clip 2P red and black cable (other accessories demo in the picture is not included.)"]