The Dogtra PL bird launcher system is a great tool to help train your hunting dog. The PL launcher is designed for pheasant-size game birds. The transmitter can be programmed to operate as many as 16 launcher units.The remote release system has the same quality digital electronics found on the Dogtra training collars. The launcher comes with a locating horn on the receiver to help you locate your launcher in the field. Features: Designed for pheasant and chukar size birdsAdjustable spring tension; adjust throwing heightMaximum air flow for scent distributionRR Deluxe is needed to operateMaximum air flow for scent distributionAdjustable spring tension allows adjustment of throwing heightDimensions 13.2" x 6.9" x 6.9"