Every time I listened to music, My Bluetooth best bluetooth headphones have been acting up. They would go a loud crackle ahout evey 15 seconds, driving me crazy. Pandora, SOMAFM.com I grabbed my other Bluetooth pair and the same thing:( I thought it was my Bluetooth transmitter on my tablet). Then I was listening to music on My Computer, and not crackle. Crackle was from streaming audio over not best WiFi. So my headphones are fine.