It is an electronic tool used to graphically depict sound waves and environmental frequencies. This tool is helpful in a number of different applications. Some of the most common include music, particularly radio frequencies and digital music remastering, but it can also be helpful in certain circuitry and engineering scenarios and in doing things like measuring seismic activity and certain other sounds in nature
● Digital multimeter.
● 200MSa/s sample rate and 20MHz bandwidth.
● 3.2 inch color TFT LCD, 320 x 240 pixels.
● You could switch menu language between English and Chinese.
● Powered by 1 x 3000mAh 18650 Li-ion battery (not included).