What's up guys I'm Jay from south FL. I was looking on eBay to get a cheap laser to mess with my dog n just play around with n didn't realize how many diff kinds of lasers there were. I found the 301 n 303 n started searching to try n find out the diff when I found this site on google. I see that they are both cheap and from what I read a good entry level laser. I wasn't able to figure out the diff n which 1 I should buy. I hoped to see what your recommendations are and if there are any diff in the 2 or if I should buy a diff 1 all together. I was looking to spend between 10-15, wanted 1 that used a 18650 batt (same as my e-cigg), came with 2 batt n charger, rotating star attachment thing, and laser. Any help is greatly appreciated. Thanks