This speaker is horrible. It lacks a volume control, and if I raise the volume on my device (cell phone, iPod, AM/FM portable radio) more than half way the speaker starts to crackle badly, less than half volume and the speaker must be very close to hear it.Save your money, don't buy this product.  I just replaced this speaker with the X-Mini.  I use this piece of junk as a paper weight now. 

Question: How is the speaker?
Answer: This speaker is horrible