It is curved and bends, causing slipping. It enables me to run with comfort and worry free. I tried to oil it to make it work, but it still wouldn’t screw all the way on so now it is a little bit too long and won’t fit where I need it to fit. I Highly Recommend the Goeco Active Noise Cancelling True Wireless Earbuds for the Low Price, Performance, and Real Good Value. However, if you are able to use HDMI or optical audio, it would be an amazing deal. The plastic ones break and I have had two shelves of crystal and china come crashing down on me. Para hablar x teléfono se oye pésimo, mucho ruido. Fragrance doesnt last all day The speaker gets plenty loud for the average person and it manages to maintain its dynamics all the way to just under full volume. Echt schade, wenn Klipsch da nachbessert kauf ich sie mir sofort wieder.