Anyone familiar with Ultimate Field Optimizer

I'm looking for info on the Ultimate Field Optimizer advertised by musicdirect in Dec. Stereophile. Who makes it, how does it work, is it safe and effective, etc. Any help would be greatly appreciated. Hornby
Yup,own it;love it. It is a demagnitizer.treat your cables,equipment,and cds. A plug in device.The effect lasts for a listening session. Worth it to me.