Which e collar is best for my dog?

The ULTRA K9 fits 8–150 lb dogs for everyday training. For small breeds or beginners, choose SPARK. For two dogs, ULTRA K9 X2 is built to train both dogs with one remote.

Is an e collar safe for reactive dogs?

Yes, when used correctly. Our systems are lab and field tested and include 124 precise levels so you can start with the lowest recognition level and train calmly without stress.

Can one remote control two collars?

Yes, both ULTRA K9 X2 and 2026 Edition support two channels with separate working levels for each dog.

How do I choose an e collar size?

Measure neck size and weight. All INVIROX collars fit 8–150 lb dogs with adjustable straps and long/short contact points for thick fur.

How does e collar training work?

We recommend starting with recognition level – the lowest level your dog notices calmly. From there, pair commands with gentle stimulation and reward-based training.