On mine, the right motor seems to be more powerful than the left, causing uneven effects. Power for the motors comes from two AAA batteries, which are not included. Aside from its weight, my only real complaint about the HammerHead FX is the fact that isn't a USB device. It works just fine as is, but USB makes operability much easier for those of us who swap units in and out often. Nice rumble effects that work similarly to force feedback.
Unit is fairly heavy.
No USB support. Copyright 2000 Electric Games. All rights reserved worldwide.