Pam804 Digital Amplifier Board 5Wx2 Volume Adjustable D Class Module

DESCRIPTION: 

• Ultra volume:23*24MM Weight 0.45 grams 
• Excellent noise suppression,you will hear any noise without connecting input audio. 
• Dual-channel stereo,only needed 5V power supply can input 5W+5W power,it can drive 4 ,8 little speaker directly,with large output power,enough energy,superior quality,and left right channel volume adjustment. 
• The unique non-LC filter Class-D digital power board, can be used computer USB to charge. 
• Dual-panel wiring,can properly solve the ground potential balance and crosstalk between channels caused by wiring. 
• Super mini design,can be easily placed in a variety of digital product s inside small space. 
• Used machine to weld whole plate. 
• Rated operating voltage is2.5-5V, the limited operating voltage is 5.5V. 

Note: The negative of left and right channel output port can not be connected together,otherwise it will damage IC,you should connect the speaker before charging.