SportDOG SD-425X Add-A-Dog Collar

The Collar Receiver for FieldTrainer 425X and SportHunter 825X. Add another dog to your current SportDOG Brand electronic training collar system or replace a Collar Receiver with the SDR-AXF Add-A-Dog Receiver Collar. Comes with a convenient docking station that charges the collar in 2 hours.

Features:

• Dog Size: 8 pounds or larger
• Fits neck size 5" - 22"
• Battery Type: Rechargeable Li-Ion