Screaming O Size 4LR44 Batteries

I keep a spare set of these 4LR44 batteries in my nightstand so I never have to pause mid-play to hunt for replacements. The bass output on my 4B vibrator is noticeably deeper and steadier than with the old batteries I'd been using.

These little batteries woke my bullet vibe right up—the low-pitch bass setting on my 4B is noticeably stronger now. Had to replace the old set and these fit perfectly without any fiddling.

Finally, a battery pack that actually holds a charge long enough for a full session of the 4B bass vibrator. These LR44s are the exact fit for my bullet vibe, and the threaded tabs make swapping them out easy.