Dayton Audio QEX19 Quadpod Self-Amplified Sound Exciter (Black)
Plug in your MP3 player, iPod, or iPhone and the Dayton Audio QEX19 Self-Amplified Sound Exciter turns virtually any solid object into a speaker by vibrating it at speeds of up to 20,000 cycles per second. Built-in amplifier allows you to put sound virtually anywhere!
