Features: Used to generate quality signals from auxiliaries waveforms in homes, offices, or workplaces. Use soft silicone key instead of traditional patchs key, high sensitivity and convenient for operation. Made of quality materials: Made of quality materials and durable, suitable for long-term use. JDS6600 double channel functional signal generator integrates multiple functions such as functional signal generator, arbitrary waveform generator, pulse generator, scannings, counter, frequency meter, etc. This instrument adopts directs digital synthesizer (DDS) technology to provide stable, accurate, and low distortion signals. It is a testing or measuring instrument for electronic engineers, electronic laboratories, teaching, and research. Specifications: Material: plastic Standard: 15MHz/60MHz(optional) Package Includes: 1xSignal Generator Counter note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the difference between different monitors, the picture may not reflect the actual color of the item.