Compact size, complete functions, and simple operation for easy portability. This unit fits in tight spaces and travels well, delivering essential testing capabilities without complexity. Key features - Portable and lightweight design for convenient carrying - Flexible power options: power adapter or 3.7V lithium battery - Compatible with an oscilloscope for versatile testing What it enables when used with an oscilloscope - Electronic circuit test and debugging - Measurement of frequency characteristics - Impulse response testing - Measurement of audio amplifiers Practical use scenarios - In a development lab: quickly test and debug a new circuit during prototyping - In an audio workflow: assess the frequency response and impulse behavior of an audio amplifier - On site service: perform portable testing in the field with battery power This device emphasizes function, compatibility with common test equipment, compact size, and dependable performance for electronic circuit and audio amplifier testing and debugging.