Review on BT102BL Rechargeable Bluetooth Microphone Isolating by Rebecca Walker

Bought a pair at the gym. The sound quality is not bad. However, design considerations are crucial for Bluetooth headphones and I don't know who they were designed for. People often wear t-shirts with a horizontal hem at the neckline, which is the natural place to attach the switch/circuit board/battery of their bluetooth headphones. The clip hangs at an angle, so it is very inconvenient to attach it to the shirt. Nobody wore a t-shirt during development? Also, is there a way to talk to them on the phone if someone calls? I think the phone button is for decoration or something. In addition, the volume is not scaled correctly. The first tick is much louder than it should be, and the "on" and "off" voice unnecessarily shouts in your ear that you have indeed successfully flipped the switch to the "on/off" position.