Review on Sony WI-C310/B Wireless In-Ear Headset with Built-in Mic for Phone Calls - Black by Jared Coleman

Pros: The music quality is fantastic, as is the battery life. Setting up and Bluetooth connection to your phone is very easy and quick. Fiction. I used them at the shooting range under headphones to listen to music while shooting targets and they worked great. You eat painfully from the weight. During a phone conversation, the person you are talking to sounds as if they are at the bottom of a well. You can actually hear your own voice bouncing back at you, and it sounds like you're at the bottom of a well. There's also that awful hum that echoes when you speak. This is absolute crap for phone calls. I've had $10 sets that worked better. They came with a proprietary charger. It doesn't make sense to me why you can't just use a regular USB charger, just another thing to try and keep up. The whole idea of the headphones being magnetized so they stick together is pretty silly since you're wearing them around your neck. And they don't really stick together. Don't waste your money reading all those bad reviews and spend less to get better.