Parameter:Work: D ClassQuiescent current: 20mAEfficiency: 90%Rated output power: 10W +10W (8Ω)response: 20Hz to 50KHzOperating voltage: DC 8-12VRecommended power supply voltage: 12VPCB board size: (40 * 40) mmPower Interface: 5.5 socketNOTE:1. The power supply voltage can not exceed 12V2. The speaker is the 4 lines are completely independent, do not allow a total of access!As long as one of the circumstances, burning IC immediatelyPackage Included:1pcs NOYITO DC12V PAM8610 Mini Stereo AMP Audio Amplify Board