I got this thing for my asp saber, but it didn't fit into the dissident body. I ended up just cutting the speaker out of the thing and wiring it up to my Nano Biscotte V3 with the plug and play stunt warrior from saberforge, worked better than I expected and I didn't need to get new batteries. The speaker is loud as hell, though. I finished this thing at midnight while my puppy was put to sleep, and it woke her up. She started barking her head off. (Note, I used the dissident body, I don't know if it'll fit into other bodies.