anyone heard of this radar...?

[TuRBo_TeGra98]

i have this radar detector made by Zenkei Tech, model AJ 900. on the top of it it says "Laser, 360 degrees Superwide Radar. 4 Band". has anyone heard of this? i'm assuming it's not supposed to be that great, considering i bought it 3-4 years ago for around $100. i assume it's no X50, but surprisingly it's gotten the job done most of the time, so if anyone's heard of this or knows what those features mean feel free to post away your opinions. thanks

[compu44]

A google and ebay search didn't turn up anything. If you could post a pic or any printing from the bottom, I might be able to tell you a little more.