You can't get much smaller than this for a speed controller! Check out these features:

* Microprocessor controlled
* Controls one motor, best for use with a weapon spinner
* non-reversible
* Extremely low resistance (.0025 ohms)
* Up to 25 amps continuous current
* Up to 40 amps surge current
* 6-12V operation
* Dynamic braking
* Built-in Battery Elimination Circuit (BEC) provides power to your reciever, eliminating the need for a receiver battery pack!
* Audible arming signal
* Auto motor cutoff with reset
* Auto shutdown when signal is lost or radio interference becomes severe
* Rugged Surface-mount construction
* Size: 0.9" x 0.7"
* Weight: 0.5oz
* Instructions included

This is a perfect controller choice for our Speed-400 Ant weapon motor!