Compact size with complete functions and simple operation for easy portability and quick setup Flexible power options: powered by a power adapter or a 3.7V lithium battery, suitable for bench use or field work Works with an oscilloscope: enables electronic circuit test and debugging, as well as frequency characteristics and impulse response testing Audio amplifier testing: suitable for measuring frequency response, impulse response, and overall amplifier performance Key benefits: saves space with an allinone tool, minimizes setup time, and supports onsite and laboratory testing Use scenarios: Electronics development lab: perform circuit testing and debugging with an oscilloscope Audio equipment testing: assess frequency response and impulse response of amplifiers Field service or installation: portable testing of electronic circuits with battery or adapter power Material and performance notes: designed for portable reliability and straightforward operation, maintaining essential testing and measurement capabilities without requiring additional devices