It makes a hissing noice when it powers up and anytime you play light/quiet music.

Ever since I've had this thing I'm had a way better music experience

Great speaker for blasting loud, but horrible for quiet music listening

I usually play music from my smart phone using Bluetooth and always very happy with what I hear

This thing puts out great sounding music at excellent volume.

If you love music and want to hear it and feel it like you're in the studio and want the portability and convenience of bluetooth and don't mind investing the money, you will be very happy.

Kinda pricey, but worth it if you love music