手机耳机，缤特力 Explorer 55

It holds battery life well. Could be louder. Although not difficult to use, read the directions on how to make calls, otherwise learn by trial and error.

Love the noise reduction feature and easy set up

I have used the M70 for years and decided to buy this piece. The earpiece has poor sound quality, and is the most uncomfortable headset I have ever used. You must have a big ear cavity to fit it inside otherwise it will grab ur ear lobe. If u have never bought one of the explorer style before be careful and if u can find a spot to test fit it.

simple and easy to use, but it worked flawless for about 10 days and now it's constantly disconnecting and i am reconnecting about 4 times a day. i don't think my phone isn't working because i have an old blue tooth and that one works fine. I also carry my phone on me so i am never out of range.