Features: Durable and reliable: handheld mini oscilloscope-standard is made-with high-quality materials to ensure long-lasting use. High sampling rate and bandwidth: With a sampling rate of 2.5mhz and an analog-bandwidth of 500khz, this oscilloscope can handle both periodic and non-periodic signals with actual bandwidth of 200khz. Suitable for all users: Whether you're working with simulated or digital signals, our oscilloscope comes equipped with complete triggering functions (single, normal, and automatic). Versatile-voltage measurement: Our oscilloscope can measure-voltage signals up to ±400v, making it suitable-for a wide range-of applications. Easy to use: Featuring a one-key auto function, you can easily display the waveforms without tedious adjustments. It has a one-key save waveforms function for your convenience. Specifications: Material:Plastic Sampling rate: 2.5MHz Analog-bandwidth: 500KHz Actual bandwidth: 200KHz Input impedance: 1mω Storage depth: 1Kb Parameter display: 12 kinds PWM-output: frequency 1k-80khz, duty ratio 0 ~ 100%, output-voltage 3.3V Function waveforms: 17 waveforms. Output: frequency 1 ~ 1khz voltage-range Vpp0～3.3V (not adjustable). Charging voltage: 5V Battery capacity: 600mA/h 3.7V Upper computer: temporarily not supported. Firmware upgrade: support Width: Approx.50mm Length: Approx.100mm (excluding BNC-head) Package Includes: 1x Mini Oscilloscope 1x Alligators Clip Test note: ①.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. ②.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.