1, Built-in 10W,115dB speaker; 2,With remote control; 3,Support 12V power; 4,Support 2 external speakers. MP3 Displayer for Hunting BirdsFunction: Download ... only the orders provide all sound.7. With 100-300m remote control8. Shell linked to a belt clip-on, easy to ... lithium battery, can play for 15 hours or so10.Accessories: Remote control, Battery,Charger, USB cable, User'smanual, White -box11.Main ...