- Pricing, as well as business hours.
- The sound design, especially the small bottoms, was not to my liking.
- Sound quality, battery life, and distance from the host that is suitable for working are all strong points.
- Microphone, which frequently requires you to move it closer to your mouth in order to speak into it; wires (or more accurately, rubber insulation) manufactured by Sony. The majority of Sony headphones suffer from a design flaw in which the rubber quickly hardens when exposed to temperatures below zero. I have no idea what kind of material they use, but when it's cold outside, you have to be careful not to snap the wire. Sometimes it happens. When using wired headphones, this would be a significant issue because loose wires are excellent at conveying the sound of something "rustling" on the surface. However, when using wireless headphones, this is typically not an issue.
- sound, comfort, and longevity of the battery
- at a temperature of minus 8 to -10 wires tan, and the earpiece can become dislodged when you tilt your head, although this is only a little inconvenience.