SportDog SDR-AH Add-A-Dog Collar Receiver Electronic Tracking Equipment 3mm Neoprene provides a comfortable

3mm Neoprene provides a comfortable fit and added warmth

You receive automatic software updates when the Alpha TT 25 is charging and connected to your network with Wi-Fi technology

Waterproof to 3 ft

This gives you immediate relief from nuisance barking

SportDog SDR-AH Add-A-Dog Collar Receiver Electronic Tracking Equipment 3mm Neoprene provides a comfortableThe SportDog SDR AH Add A Dog Collar Receiver is the original collar receiver that comes with the HoundHunter 3225. This SportDog add a dog collar has waterproof design technology. Add another dog to your current SportDog electronic collar system or replace a collar receiver with the SDR AH Add A Dog Collar Receiver. The SportDog SDR AH Add A Dog Collar Receiver is compatible with: HoundHunter 3225 SportHunter 1225 ProHunter 2525