Features:  Resolution: Equipped with 320*240 resolution color display, with bright colors and high contrast, you can see the data clearly.  Bandwidth and sampling rate: With 120M bandwidth and 500M sampling rate, more stable and with higher precisions.  High bandwidth: Up to 120M bandwidth can easily cope with measurement tests in various fields.  There are 14 measurement options available as follows: Frequency, Peaks-to-Peaks, Duty cycle, Amplitude, RMS, Average, Period, +Pulse width, -Pulse width, Max, Min,Top, Base, -Duty cycle.  Support switch the output waveform: sine wave, square wave, triangle wave, etc.  FFT: FFT is used to convert time domain waveforms into frequency domain and is widely used in harmonic analysis and other fields. Support three display modes: logarithmic, linear, and music spectrum.  Reference waveform: you can measure the waveform first, lock the current waveform on the screen, and the normally refreshed waveform will not be affected. Reference waveforms are useful for single-channel oscilloscopes. With reference waveforms, you can easily compare the waveforms of two channels.  Complete trigger: Trig mode: Auto/Normal; Trigger types: Rise/Fall, Trigger level: Manual/Auto  Vertical sensitivity and time base: The scope's vertical sensitivity is ranges from 10mV/div to 10V/div (1X ranges). The oscilloscope time base is ranges from 5ns to 10s.  Waveform save: One-click to save the screen waveform, and also support delete or browse historical screenshots..  Connect to PC: The screenshot pictures can be exported to a computers via a USB connection.  Video output: The 3.5mm headphone jack at the bottom can output AV video simulating signal, which can be connected to a TV or projector.  Power-supply: built-in rechargeable lithium battery, 3.7V, 3000mAh large caparity, full-charged can provides long working time.  Compact size: lightweight and portable, also can be used as a portable tool for on-site debugging.  Widely applications: suitable for mcu debugging, car repair, home appliance repair, DIY electronic competition, power-supply debugging, inverter, etc.    Specicifations:  Name: Oscilloscope  Model: DSO1511G  Color: yellow, green (optional)  Battery: 1 * 2.5V, 3000mAh battery (included)  Channels: 1   Screen size: 2.4 inch   Measurement: 14 types   Resolution: 320*240   Bandwidth: 120M   Sampling rate: 500M  Rise time: <3ns   Storage depth: 128Kbit   Impedance: 1MΩ   Time base: 5ns–10s  Ver sensitivity: 10mV/div-10V/div  Max voltae: ±40V(x1); ±400V(x10)  Trigger mode: Auto/Normal  Trigger type: rise/fall   Display mode: YT/Roll  Persistence: None/1s / ∞  Coupling: Direct Current/Alternating Current  AUTO: Support   Precision of V: ±2%   Reference: Support   Screenshot: Support   Single: Support   FFT: Support   Frequency: ±0.01%  Generator: 0-2Mhz/2.5V   50%: Support   Language: CN/EN  Recharging: USB TypeC-5V 1A/2A/5A  Item size: 73 * 93 * 32mm / 2.87 * 3.66 * 1.26in  Item weight: 166g / ounce  Package size: 190 * 100 * 130mm / 7.48 * 3.94 * 5.