Addon Collar For Rapt1450 - GreenRapt 1450 Upland Beeper Addon Collars Are A Great Addition To Your Rapt Upland Unit. Add 1 Or 2 Collars For Up To 3-Dogs Total. The Additional Collars Are Rechargeable And Easily Programmed (With Instructions On The Packaging) To The Transmitter/Remote.Choose Black, Orange, Or Green Strap.Features of Addon Collar ..