Western Rivers Single Game Electronic Call - The Western Rivers Single Game Call features the following: Single 4in Reflex Horn Driver For Maximum 120db Output 8GB Internal Memory (2) Two External Jacks To Accommodate Secondary Amplified Speaker(s) For Virtual Surround Functionality Auxiliary Output To Trigger Motorized Decoy (Sync), In Addition To Motor Sync Connector Sound Overlay, Allows Two Sounds To Play Simultaneously Configurable Preset Volume Levels For Different Calls Sequential Call Playback To Select Speakers (When Using Auxiliary Speakers) Customizable Quicksets 2-5 Calls To Play In Set Set Random Or Sequential Play With Preset Spacing Distances Between Calls Of 5/10/20/30 Seconds 2in Dot Matrix Display Powered By 8 AA Batteries (Not Included) 40 Preloaded Calls USB Jack Remote Features Include: 50% Volume Reduction Button To Help Bring Predators In Closer Complete Control Of All Call Functions Four Channel Long Range Remote Transmits Up To 300 Yard Range Backlit Push Buttons 2.8in LCD Screen