Like with most humans, most dogs will also lose their hearing as they get older so it will become increasingly difficult for them to hear the audible tone, but they will always be able to feel the Vibration feature. Also, your dog will be able to feel the vibration when the collar unit is submersed under water if he ever decides to go swimming. The tone from other collars may not be heard if the collar is under water. Depending on how you train with it, Vibration can be a warning, a command, a way to get your dog's attention, a substitution for stimulation (especially for sensitive dogs), or even a reward just to name a few uses.
Features:
- H2O 1820 PLUS has Vibration and is expandable up to 3 collars
- 1800 Yard (1 Mile) Range
- FLOATING Transmitter with No-Slip/Soft-Grip rubber coating
- Maxx-Range internal collar antenna system
- Gentle touch system extra mild stimulation