Replacement/Spare Part - Remote Transmitter for RopriPet Active Collar Training System - 505iRP, 505iRP-2 , 506i & 506i-2 Replacement for lost or damaged remote transmitter Will suit the following RopriPet Active Collar Models: 505iRP, 505iRP-2, 506i and 506i-2 Will NOT suit RopriPet Active Collar Pro Models: 606i and 606i-2