Spectrum Analyzer Signal Generator: This Spectrum Analyzer can be used in radio frequency testing, wireless optimization, on-site network layout, interference query and so on. It can be used to test the spectrum distribution of signals Easy to Operate and Carry: This Frequency Spectrum Analyzer is designed with small size, light in weight, compact structure, easy to carry, suitable for field measurement Easy to Charge: This Handheld Spectrum Analyzer adopts with built-in lithium batteries can be charged by standard 5V charger of mobile phone. It can be used for about 9 hours at full power Multi-functions Provides High Efficiency Performance: This Portable Signal Generator has multi-functions, such as real-time spectrum analysis function, real-time spectrum scanning, support for SPAN/RBW/CENT/MARKER function, MAXHLOD function, maximum power automatic detection Wider Frequency Range: The detection frequency ranges from 10MHz to 2700MHz. It can detect real-time spectrum, frequency spectrum and thermodynamic spectrum in the frequency band. It is easy to use