FeaturesMultiple display modes: There are 10 display modes in total. Compared with a mechanical meter, it can display the real level value in the full frequency range, and the response is more sensitive.Button adjustment function: Short press to switch mode, long press to set mirror display mode, and gain can be adjusted when switching up and down. When you need to set the time, please short press to switch to the time display mode, and then toggle the button up and down to calibrate the time.Power supply mode and color screen: USB 5V power supply, the interface and the button are on the same side, and you can use it anytime, anywhere. Equipped with a 1.3-inch high-definition 16-bit true color screen, the screen size can be adjusted to a small size without losing sensitivity. It is also the best choice for your DIY.Sturdy and compact appearance: Using an aluminum alloy body, and the screen is equipped with a PMMA protective case. The compact body is easy to carry and can be used in the room or in the car to decorate your desktop.ParametersVoltage: DC 5VCurrent: