On Sunday I wrote a review of my current electro box, the Erostek ET232. As you could read I really like the box: It is small, powerful and versatile. Yet sometimes at play I wish for something more: A second box for a more elaborate electrode setup, especially with a microphone for a really torture setup (described here). But there is more why I would want an ET302R. Since it is a digital box you can set the output volume very precise and the box stops at the ramping program after one wave so it is ideal for training or getting the endorphins flowing.
The piece de resistance is that it is a small, portable, remote controllable power box so you can take a walk with your sub and shock him whenever you think he (or you) deserves it. Even just the thought that just a little push on the provided remote control gives most subs a tingle of excitement.