MULTI FUNCTIONS:Noise source can generate noise, can be used as spectrum tracking source and interference source GENERATE WHITE NOISE:Using a special voltage regulator tube, white noise is generated in the breakdown state, and then amplified. Just replace the tracking source directly TRACE GENERATORS AND SOURCES:Noise source can be used for trace generators, block sources, and noise sources, very versatile DC12V POWER SUPPLY:DC12V 0.3A1A power supply, adapter input is US AC100240V, come with SMA output interface, more versatile STABLE AND DURABLE:0.0013000mhz simple spectrum tracking source has stable structure, excellent performance and long service life Item Type:Noise Source Power Supply:DC12V/0.3A-1A Output Interface:SMA Voltage:AC100-240V Plug Type:US Plug, it applies to Canada, India, Mexico, Thailand, Taiwan, the , the Philippines and so on. Colour:Black Material:plastic Package Contents: 1 * Noise Source 1 * Power Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.