![Amazon.com : Dogtra 1900S HANDSFREE Plus Remote Dog Training E-Collar with Expandable HANDSFREE Square for Discreet Control Ergonomic Rechargeable 3/4-Mile Range Waterproof High-Output : Pet Supplies Amazon.com : Dogtra 1900S HANDSFREE Plus Remote Dog Training E-Collar with Expandable HANDSFREE Square for Discreet Control Ergonomic Rechargeable 3/4-Mile Range Waterproof High-Output : Pet Supplies](https://m.media-amazon.com/images/I/61KBqzPPlfL._AC_UF1000,1000_QL80_.jpg)
Amazon.com : Dogtra 1900S HANDSFREE Plus Remote Dog Training E-Collar with Expandable HANDSFREE Square for Discreet Control Ergonomic Rechargeable 3/4-Mile Range Waterproof High-Output : Pet Supplies
![Amazon.com: Dogtra 2300NCP Professional Grade High-Output 3/4-Mile 2-Dog Expandable Remote Training E-Collar : Pet Supplies Amazon.com: Dogtra 2300NCP Professional Grade High-Output 3/4-Mile 2-Dog Expandable Remote Training E-Collar : Pet Supplies](https://m.media-amazon.com/images/I/61mcam45awL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Dogtra 2300NCP Professional Grade High-Output 3/4-Mile 2-Dog Expandable Remote Training E-Collar : Pet Supplies
![Amazon.com: Dogtra 2300NCP Additional Receiver Professional Grade High-Output 3/4-Mile 2-Dog Expandable Remote Training E-Collar : Pet Supplies Amazon.com: Dogtra 2300NCP Additional Receiver Professional Grade High-Output 3/4-Mile 2-Dog Expandable Remote Training E-Collar : Pet Supplies](https://m.media-amazon.com/images/I/61z-ODfYT1L.jpg)
Amazon.com: Dogtra 2300NCP Additional Receiver Professional Grade High-Output 3/4-Mile 2-Dog Expandable Remote Training E-Collar : Pet Supplies
![Amazon.com : Dogtra 1902S HANDSFREE Plus Boost and Lock, Remote Dog Training E-Collar, HANDSFREE Square, 3/4-Mile Range, Rechargeable, Waterproof, High-Output, 2 Dog System, eCollar for Medium, Large Dogs : Pet Supplies Amazon.com : Dogtra 1902S HANDSFREE Plus Boost and Lock, Remote Dog Training E-Collar, HANDSFREE Square, 3/4-Mile Range, Rechargeable, Waterproof, High-Output, 2 Dog System, eCollar for Medium, Large Dogs : Pet Supplies](https://m.media-amazon.com/images/I/71k78XITkhL._AC_UF350,350_QL80_.jpg)
Amazon.com : Dogtra 1902S HANDSFREE Plus Boost and Lock, Remote Dog Training E-Collar, HANDSFREE Square, 3/4-Mile Range, Rechargeable, Waterproof, High-Output, 2 Dog System, eCollar for Medium, Large Dogs : Pet Supplies
![Amazon.com : Dogtra 1902S HANDSFREE Plus Boost and Lock, Remote Dog Training E-Collar, HANDSFREE Square, 3/4-Mile Range, Rechargeable, Waterproof, High-Output, 2 Dog System, eCollar for Medium, Large Dogs : Pet Supplies Amazon.com : Dogtra 1902S HANDSFREE Plus Boost and Lock, Remote Dog Training E-Collar, HANDSFREE Square, 3/4-Mile Range, Rechargeable, Waterproof, High-Output, 2 Dog System, eCollar for Medium, Large Dogs : Pet Supplies](https://m.media-amazon.com/images/I/71nHc2ezLXL._AC_UF1000,1000_QL80_.jpg)