2 x 2 Watt Audio Amplifier Board - PAM8803 Class D<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Power output: 2 x 2W @ 4 Ohm</li><li>Frequency response: 20Hz ~ 20kHz</li><li>Efficiency: 88%</li><li>THD @ 4 Ohm， 1W， 1KHz: 0.22%</li><li>SNR @ 4Ohm THD+N 1%: 84dB</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51MQzt4mNIL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/5107G1g-%2B4L.jpg" noproxy>