1.With two 50W Loud Speakers 150dB,Main Player Built-in heat dissipation design. 2.Support MIX Voice play,connect Phone,CD,MP3 etc digital players via AUX audio input port.Playing two different voices at the same time in mix function. 3.With 10 Keys for easily and directly opeation. 4.Built-in 200 difference bird voice. 5.Built-in Timer,support cycle timer. 6.Connect with “aviation plug”,DC12 power supply, connector is more tight and useful. 7.Used Tool-box.