Review on trumoto Water Resistant Sports Bluetooth Stereo Headphones - Onyx Black: Noise Cancelling Earbuds, Mic & More! by Brian Zhao

The only thing I missed about these headphones was the battery life. I spent about 4 hours on them before hearing the low battery beep about 10 minutes before dying and they took about 6 hours to charge. I've used them for workouts, I sweat a lot and they held up great and stayed in place when needed. I really like the bright yellow color. They sound great IMHO. Especially if they are only intended for gym use. Never tried to use a microphone. I've had them for about 3 years and I think they've finally kicked the can since I can't sync my phone anymore. I'll probably order a few more.