Train up to 3 dogs on 1 device with the Delta Sport Add-A-Collar. These compact, waterproof (IPX7) and rugged devices have integrated stainless steel contact points optimized for all dog breeds and all coat lengths.
Compatible with both the Delta and the Delta Sport handhelds. BarkLimiter technology works only with the Delta Sport. Change collar color with any 3/4″ Day-glo collar. Rechargeable lithium-ion batteries last 3 months.