[nzhao20]

Is there any way to without using tons of 9V batteries? Are there other options in a similar price point that do the job?

 

[hisagishi]

Grab a USB cable, hook it  up to a dc to dc converter, converting 5v into 9v, wire that up to the cmoy, bang done.

 

[kramer5150]

I use 2x NiMH in my moy and just recharge them.