COYOTE Portable Pulse Generator E-Stim Power Box 3.0

The patterns are no here near as smooth as my ET-312 but I bought for the portability. Not too impressed with the standard patterns but have found some nice patterns online and still exploring. Also haven't yet experimented with making custom patterns. This unit takes some time to learn and I wish there were more complete instructions online. All-in-all it is as advertised and I like the bluetooth control.