The next generation of the Sescom IL-19 series, the IL-19-MINI is an inline hum elimnator / matching transformer for 3.5mm stereo (TRS) runs and is perfect for both DSLR audio applications as well as a laptop interface where HUM always poses a problem, you can connect up to a 25 foot unbalanced 3.5mm TRS cable between any mic output source and through the IL-19-MINI to remove hum. As a laptop interface use it between external PC mic inputs to remove any unwanted hum and noise. Perfect for use with, but not limited to the following: when interfacing with MP3 players, computer audio, cell phone audio, including Android, RIM/Blackberry and iOS iDevices like the iPhone, iPad and of course the iPod Touch... just in case you want to connect your Smart Phone to the DJ mixer at the next party you are at! Designed as 3 products in-one, the Sescom IL-19-MINI uses the same technology and Sescom proprietary components as our World Famous Industry Standard IL-19 for instantly removing audio hum in live sound & broadcast applications providing quick fix line isolation to remove hum. Removes ground loop hum, mode noise & differentially induced hum. Other in-line problem solvers solve only one problem at a time. Sescom transformers are specifically engineered for excellent, extra-wide frequency response allowing a hotter signal. Sescom transformers also provide superior protection against radiated noise thus reducing pickup of hum and interference from outside sources such as power supplies. The IL-19-MINI keeps unwanted signals out of the circuit, but also reduces induced noise providing high-quality transformer isolation to eliminate hum and buzz from interacting gear. Built into a tiny high impact non-conductive ABS enclosure.