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: 1m 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 Vpp03.3V (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) Note: .Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. .Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings. Package includes: 1x Mini Oscilloscope 1x Alligators Clip Test