Review on Enhance Your Listening Experience with KZ APTX-HD Bluetooth Headphones Extension Cable for KZ ZST ZS10 AS10 BA10 AS06 ES4 ZSR Earphone Accessories by Kendra Johnson

I've used mine a few times at the gym and they're perfect for that! I don't have any noise issues and mine are loud enough that I don't need full volume. The two pieces worn around the neck takes a little getting used to, but I'd say it's a minor inconvenience. I'm not sure about the battery yet, as I only use it for about 2 hours and then charge it again. I'll be buying a second one soon and it will be around 6 hours of continuous use and I'll see if it lasts or not. I'll update later if I run into any problems or anything.