You are talking about this one right?
New Style waterproof red laser 200mW /adjustable [OLNWRL200] - $53.99 : Welcome to O-Like.com, Your source for laser products
I like that it takes a 18650, which is my favorite battery to work with. As you move to more powerful lasers, you'll find that a significant percentage use that battery.
wish the o-like red glasses looked nicer, its kinda ugly