This Dogtra IQ-Plus Remote Dog Training Collaris an excellent device for obedience training and behavior management: it will suit all yourpet-training needs by allowing you to gently correct your four-legged friend with its low to medium output.
The Dogtra IQ-Plus Remote Dog Training Collaris one of the most powerful e-collars available with all its features and training modes: it has training modes in Nick, Constant, as well as a patented non-stimulating Pager Vibration, much like the vibrate feature on your smartphone. In addition, the IQ-Plus Collar's 400-yard range provides nice communication with the waterproof receiver.
The Dogtra IQ-Plus Remote Dog Training Collaris recommended for small to medium-sized dogs. It's also an expandable remote dog training tool that lets you train up to two dogs simultaneously: the Transmitter is expandable up to 2 dogs, if you purchase a 2nd dog receiver/collar.
Here is a nice tutorial to see how to use the Dogtra IQ-Plus Collar.