SportDOG Additional Collars

SportDOG Add-A-Dog Extra Receiver Collar - SDR-AXF-E (for SD-425X-E and SD-825X-E)

SportDOG Sporthunter Extra Collar SDR-AX-E (for SD-1825 & SD-1225)

Dogtra ARC Additional Collar

SportDOG Rechargeable SDF-CR-22 Additional Receiver Collar

SportDOG Contain + Train System Additional Collar - SDF-CTR-22