I emailed Sennheiser, opened a case, and within a week they shipped me a new replacement pair. The color in the back is not even, especially on the left side of the belt, there are some spots that are lighter color than the rest of the belt. Not only is that convenient but it means that the charging port will last much longer because i dont have to plug it in as much. One suggestion I would make is try before you buy the amp or noise cancelling mod kits. Sent to my Daughter in Australia. I would recommend not using the achors that were included, but buying better heavy duty anchors as it will be heavy with all the jars of spices. Didn’t have a lot expectations since I own both Sony and Bose. First off, the packaging it comes with is very nice and it comes with a micro USB charging cable, an AUX cord, and a waterproof protective sleeve for the speaker! I bought these as I wanted a dimple footbed. Fit perfect , comfortable and don’t stretch out when wet.