Feature: 1. [High Performance Oscilloscope] This portable handheld oscilloscope features 1M bandwidth, 5MS/s sampling rate, and 1K calibration square wave for accurate measurements. 2. [14 Waveforms] Including sine, square, sawtooth, half wave, full wave, positive step, negative step, noise, exponential rise, exponential fall, DC signal, multi tone, sinc pulse, Lorentz wave. 3. [Digital Display] Equipped with 2.8 inch 320x240 PPI display, this handheld digital oscilloscope provides clear and detailed visuals for easy operation. 4. [Compact and Portable] With a palm sized and lightweight body, this handheld signal generator is easy to carry, ideal for on the go use. Built in 1000mAh battery for 4 hours continuous usage after full charge. 5. [High Voltage Resistant] Built in high voltage protecting module, this portable digital oscilloscope can withstand continuous voltages up to 400V. Suitable for various occasion. Specification: Item Type: Oscilloscope and Signal Generator Material: ABS Battery Type: Rechargeable Lithium Ion Battery (Built in) Capacity: 1000mAh Languages Setting: English, Chinese, Japanese, Portuguese, German, Korean, Spanish, Russian Light and Sound Setting: Brightness: 25-100; Sound: 0-10 Auto Off Setting: Off, 15 minutes, 30 minutes, 1 hour Oscilloscope Function: Sampling Rate: 5MS/s Bandwidth: 1M Vertical Sensitivity: 10mV/Div-10V/Div Time Base Range: 500ns-20S X1: ±40V (Vpp: 80V) X10: ±400V (Vpp: 800V) Triggering Modes: Auto, Normal, Single Triggering Edges: Rising, Falling Coupling Modes: AC DC Calibration Square Wave: Frequency: 1K; Duty Cycle: 50%; Amplitude: 3.3V Signal Generator Function: Frequency: 0-10KHz Duty Cycle: 0-100% (Square Wave and Sawtooth Wave) Amplitude: 0.1-3.3V Waveforms: Sine Wave, Square Wave, Sawtooth Wave, Half Wave, Full Wave, Positive Staircase Wave, Negative Staircase Wave, Noise Wave, Exponential Rise, Exponential Fall, DC Signal, Multi Tone, Sync Pulse, Lorentz Wave Display: 2.8 Inch PPI: 320x240. Package List: 1 x Oscilloscope and Signal Generator 1 x Lanyard 1 x Crocodile Clip Probe 1 x Type C Data Cable 1 x User Manual