The manual on the appearance and voices of the swamp and waterfowl Benefits: ✔ Large, streamlined sound base, ✔ Customizable playback period, ✔ Customizable number of sounds to play, ✔ Play sounds in the background, ✔ Split sounds into channels, ✔ Convenience and ergonomics, ✔ Easy to use. Guide to use: ✔ install the application on your device, ✔ connect an external speaker or amplifier (the power of the built-in speaker of the phone is not enough), ✔ select the category of game whose sounds y