2012 King product,built-in 50W,with 2 loud speaker for 150dB. NEW MODEL!!! New model ... function,and can set a specified track sound.Built-in 50W, 12~24V power supply, power is more powerful, conform ... market demand.Support external two loud speakers, maximum can support 50W speaker and the sound maximum can reach 150dB. The real ... for 2012 King product,with 2 loud speakers of 50W and 150dB.with timer.