More from Amazon.com : http://www.amazon.com/gp/product/B00C0PAL84?tag=thefatkidin06-20 <br /> <br />DROK? TDA7850 4-channel Amplifier Car Audio Upgrade DIY DC 12V For PC/MP3/MP4/GPS/cell phones/radios <br /> <br />Power supply DC 12V Output Power50W4 <br />Product ModelTDA8920S <br />Standby current 12mA <br />ACC control Working standby <br />BA3121 denoiser function