Compact size with full functions, simple operation, and easy portability for onthego use. Dual power options: can be powered by a power adapter or a 3.7V lithium battery, offering flexible powering in various environments. Compatible with an oscilloscope: when used together with an oscilloscope, it supports electronic circuit test and debugging, as well as frequency characteristics and impulse response testing, and measurement of audio amplifiers. Key benefits: saves space on the workbench while delivering complete testing capabilities; straightforward operation reduces setup time; portable power enhances field use and service visits. Use scenarios: 1) Field service and onsite debugging of electronic circuits, using the oscilloscope for realtime measurement. 2) Laboratory testing of audio amplifiers, including frequency response and impulse response measurements. 3) Development and prototyping environments where portable, batterypowered operation is advantageous.